diff --git a/compiler/ir/serialization.common/src/KotlinIr.proto b/compiler/ir/serialization.common/src/KotlinIr.proto
index d946f7b4b4d..1bf961e6b06 100644
--- a/compiler/ir/serialization.common/src/KotlinIr.proto
+++ b/compiler/ir/serialization.common/src/KotlinIr.proto
@@ -30,7 +30,7 @@ message CommonIdSignature {
   repeated int32 declaration_fq_name = 2 [packed = true];
   optional int64 member_uniq_id = 3;
   optional int64 flags = 4 [default = 0];
-  optional int64 debug_info = 5;
+  optional int32 debug_info = 5;
 }
 
 message AccessorIdSignature {
@@ -38,6 +38,7 @@ message AccessorIdSignature {
   required int32 name = 2;
   required int64 accessor_hash_id = 3;
   optional int64 flags = 4 [default = 0];
+  optional int32 debug_info = 5;
 }
 
 message FileLocalIdSignature {
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IdSignatureDeserializer.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IdSignatureDeserializer.kt
index bb942389566..fa9df61f4cd 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IdSignatureDeserializer.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/IdSignatureDeserializer.kt
@@ -55,6 +55,7 @@ class IdSignatureDeserializer(
         val name = libraryFile.string(proto.name)
         val hash = proto.accessorHashId
         val mask = proto.flags
+        val description = if (proto.hasDebugInfo()) libraryFile.debugInfo(proto.debugInfo)?.let(internationService::string) else null
 
         val declarationFqName = internationService.string("${propertySignature.declarationFqName}.$name")
         val accessorSignature =
@@ -63,7 +64,7 @@ class IdSignatureDeserializer(
                 declarationFqName = declarationFqName,
                 id = hash,
                 mask = mask,
-                description = null, // TODO(KT-59486): Deserialize mangled name and save it here
+                description = description,
             )
 
         return IdSignature.AccessorSignature(propertySignature, accessorSignature)
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/AccessorIdSignature.java b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/AccessorIdSignature.java
index a417adb19db..2652e762e92 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/AccessorIdSignature.java
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/AccessorIdSignature.java
@@ -73,6 +73,11 @@ public final class AccessorIdSignature extends
             flags_ = input.readInt64();
             break;
           }
+          case 40: {
+            bitField0_ |= 0x00000010;
+            debugInfo_ = input.readInt32();
+            break;
+          }
         }
       }
     } catch (org.jetbrains.kotlin.protobuf.InvalidProtocolBufferException e) {
@@ -167,11 +172,27 @@ public final class AccessorIdSignature extends
     return flags_;
   }
 
+  public static final int DEBUG_INFO_FIELD_NUMBER = 5;
+  private int debugInfo_;
+  /**
+   * <code>optional int32 debug_info = 5;</code>
+   */
+  public boolean hasDebugInfo() {
+    return ((bitField0_ & 0x00000010) == 0x00000010);
+  }
+  /**
+   * <code>optional int32 debug_info = 5;</code>
+   */
+  public int getDebugInfo() {
+    return debugInfo_;
+  }
+
   private void initFields() {
     propertySignature_ = 0;
     name_ = 0;
     accessorHashId_ = 0L;
     flags_ = 0L;
+    debugInfo_ = 0;
   }
   private byte memoizedIsInitialized = -1;
   public final boolean isInitialized() {
@@ -210,6 +231,9 @@ public final class AccessorIdSignature extends
     if (((bitField0_ & 0x00000008) == 0x00000008)) {
       output.writeInt64(4, flags_);
     }
+    if (((bitField0_ & 0x00000010) == 0x00000010)) {
+      output.writeInt32(5, debugInfo_);
+    }
     output.writeRawBytes(unknownFields);
   }
 
@@ -235,6 +259,10 @@ public final class AccessorIdSignature extends
       size += org.jetbrains.kotlin.protobuf.CodedOutputStream
         .computeInt64Size(4, flags_);
     }
+    if (((bitField0_ & 0x00000010) == 0x00000010)) {
+      size += org.jetbrains.kotlin.protobuf.CodedOutputStream
+        .computeInt32Size(5, debugInfo_);
+    }
     size += unknownFields.size();
     memoizedSerializedSize = size;
     return size;
@@ -337,6 +365,8 @@ public final class AccessorIdSignature extends
       bitField0_ = (bitField0_ & ~0x00000004);
       flags_ = 0L;
       bitField0_ = (bitField0_ & ~0x00000008);
+      debugInfo_ = 0;
+      bitField0_ = (bitField0_ & ~0x00000010);
       return this;
     }
 
@@ -376,6 +406,10 @@ public final class AccessorIdSignature extends
         to_bitField0_ |= 0x00000008;
       }
       result.flags_ = flags_;
+      if (((from_bitField0_ & 0x00000010) == 0x00000010)) {
+        to_bitField0_ |= 0x00000010;
+      }
+      result.debugInfo_ = debugInfo_;
       result.bitField0_ = to_bitField0_;
       return result;
     }
@@ -394,6 +428,9 @@ public final class AccessorIdSignature extends
       if (other.hasFlags()) {
         setFlags(other.getFlags());
       }
+      if (other.hasDebugInfo()) {
+        setDebugInfo(other.getDebugInfo());
+      }
       setUnknownFields(
           getUnknownFields().concat(other.unknownFields));
       return this;
@@ -562,6 +599,38 @@ public final class AccessorIdSignature extends
       return this;
     }
 
+    private int debugInfo_ ;
+    /**
+     * <code>optional int32 debug_info = 5;</code>
+     */
+    public boolean hasDebugInfo() {
+      return ((bitField0_ & 0x00000010) == 0x00000010);
+    }
+    /**
+     * <code>optional int32 debug_info = 5;</code>
+     */
+    public int getDebugInfo() {
+      return debugInfo_;
+    }
+    /**
+     * <code>optional int32 debug_info = 5;</code>
+     */
+    public Builder setDebugInfo(int value) {
+      bitField0_ |= 0x00000010;
+      debugInfo_ = value;
+      
+      return this;
+    }
+    /**
+     * <code>optional int32 debug_info = 5;</code>
+     */
+    public Builder clearDebugInfo() {
+      bitField0_ = (bitField0_ & ~0x00000010);
+      debugInfo_ = 0;
+      
+      return this;
+    }
+
     // @@protoc_insertion_point(builder_scope:org.jetbrains.kotlin.backend.common.serialization.proto.AccessorIdSignature)
   }
 
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/AccessorIdSignatureOrBuilder.java b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/AccessorIdSignatureOrBuilder.java
index fce9395d57f..5273ea009f3 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/AccessorIdSignatureOrBuilder.java
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/AccessorIdSignatureOrBuilder.java
@@ -42,4 +42,13 @@ public interface AccessorIdSignatureOrBuilder extends
    * <code>optional int64 flags = 4 [default = 0];</code>
    */
   long getFlags();
+
+  /**
+   * <code>optional int32 debug_info = 5;</code>
+   */
+  boolean hasDebugInfo();
+  /**
+   * <code>optional int32 debug_info = 5;</code>
+   */
+  int getDebugInfo();
 }
\ No newline at end of file
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/CommonIdSignature.java b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/CommonIdSignature.java
index 79caba71eb1..4c8781e16d7 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/CommonIdSignature.java
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/CommonIdSignature.java
@@ -107,7 +107,7 @@ public final class CommonIdSignature extends
           }
           case 40: {
             bitField0_ |= 0x00000004;
-            debugInfo_ = input.readInt64();
+            debugInfo_ = input.readInt32();
             break;
           }
         }
@@ -227,17 +227,17 @@ public final class CommonIdSignature extends
   }
 
   public static final int DEBUG_INFO_FIELD_NUMBER = 5;
-  private long debugInfo_;
+  private int debugInfo_;
   /**
-   * <code>optional int64 debug_info = 5;</code>
+   * <code>optional int32 debug_info = 5;</code>
    */
   public boolean hasDebugInfo() {
     return ((bitField0_ & 0x00000004) == 0x00000004);
   }
   /**
-   * <code>optional int64 debug_info = 5;</code>
+   * <code>optional int32 debug_info = 5;</code>
    */
-  public long getDebugInfo() {
+  public int getDebugInfo() {
     return debugInfo_;
   }
 
@@ -246,7 +246,7 @@ public final class CommonIdSignature extends
     declarationFqName_ = java.util.Collections.emptyList();
     memberUniqId_ = 0L;
     flags_ = 0L;
-    debugInfo_ = 0L;
+    debugInfo_ = 0;
   }
   private byte memoizedIsInitialized = -1;
   public final boolean isInitialized() {
@@ -282,7 +282,7 @@ public final class CommonIdSignature extends
       output.writeInt64(4, flags_);
     }
     if (((bitField0_ & 0x00000004) == 0x00000004)) {
-      output.writeInt64(5, debugInfo_);
+      output.writeInt32(5, debugInfo_);
     }
     output.writeRawBytes(unknownFields);
   }
@@ -331,7 +331,7 @@ public final class CommonIdSignature extends
     }
     if (((bitField0_ & 0x00000004) == 0x00000004)) {
       size += org.jetbrains.kotlin.protobuf.CodedOutputStream
-        .computeInt64Size(5, debugInfo_);
+        .computeInt32Size(5, debugInfo_);
     }
     size += unknownFields.size();
     memoizedSerializedSize = size;
@@ -435,7 +435,7 @@ public final class CommonIdSignature extends
       bitField0_ = (bitField0_ & ~0x00000004);
       flags_ = 0L;
       bitField0_ = (bitField0_ & ~0x00000008);
-      debugInfo_ = 0L;
+      debugInfo_ = 0;
       bitField0_ = (bitField0_ & ~0x00000010);
       return this;
     }
@@ -741,34 +741,34 @@ public final class CommonIdSignature extends
       return this;
     }
 
-    private long debugInfo_ ;
+    private int debugInfo_ ;
     /**
-     * <code>optional int64 debug_info = 5;</code>
+     * <code>optional int32 debug_info = 5;</code>
      */
     public boolean hasDebugInfo() {
       return ((bitField0_ & 0x00000010) == 0x00000010);
     }
     /**
-     * <code>optional int64 debug_info = 5;</code>
+     * <code>optional int32 debug_info = 5;</code>
      */
-    public long getDebugInfo() {
+    public int getDebugInfo() {
       return debugInfo_;
     }
     /**
-     * <code>optional int64 debug_info = 5;</code>
+     * <code>optional int32 debug_info = 5;</code>
      */
-    public Builder setDebugInfo(long value) {
+    public Builder setDebugInfo(int value) {
       bitField0_ |= 0x00000010;
       debugInfo_ = value;
       
       return this;
     }
     /**
-     * <code>optional int64 debug_info = 5;</code>
+     * <code>optional int32 debug_info = 5;</code>
      */
     public Builder clearDebugInfo() {
       bitField0_ = (bitField0_ & ~0x00000010);
-      debugInfo_ = 0L;
+      debugInfo_ = 0;
       
       return this;
     }
diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/CommonIdSignatureOrBuilder.java b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/CommonIdSignatureOrBuilder.java
index 302055fe13e..6e22a02442c 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/CommonIdSignatureOrBuilder.java
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/serialization/proto/CommonIdSignatureOrBuilder.java
@@ -52,11 +52,11 @@ public interface CommonIdSignatureOrBuilder extends
   long getFlags();
 
   /**
-   * <code>optional int64 debug_info = 5;</code>
+   * <code>optional int32 debug_info = 5;</code>
    */
   boolean hasDebugInfo();
   /**
-   * <code>optional int64 debug_info = 5;</code>
+   * <code>optional int32 debug_info = 5;</code>
    */
-  long getDebugInfo();
+  int getDebugInfo();
 }
\ No newline at end of file