diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/Ir.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/Ir.kt
index 795854302cb..64bcaa5c1fe 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/Ir.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/ir/Ir.kt
@@ -109,6 +109,7 @@ internal class KonanSymbols(
     val nativePtrType = nativePtr.typeWith(arguments = emptyList())
 
     val immutableBlobOf = nativeFunction(IMMUTABLE_BLOB_OF)
+    val immutableBlobOfImpl = internalFunction("immutableBlobOfImpl")
 
     val signedIntegerClasses = setOf(byte, short, int, long)
     val unsignedIntegerClasses = setOf(uByte!!, uShort!!, uInt!!, uLong!!)
diff --git a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/PostInlineLowering.kt b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/PostInlineLowering.kt
index f6e59d2cab3..68b0315938b 100644
--- a/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/PostInlineLowering.kt
+++ b/kotlin-native/backend.native/compiler/ir/backend.native/src/org/jetbrains/kotlin/backend/konan/lower/PostInlineLowering.kt
@@ -15,6 +15,7 @@ import org.jetbrains.kotlin.backend.konan.renderCompilerError
 import org.jetbrains.kotlin.ir.builders.IrBuilderWithScope
 import org.jetbrains.kotlin.ir.builders.irCall
 import org.jetbrains.kotlin.ir.builders.irCallWithSubstitutedType
+import org.jetbrains.kotlin.ir.builders.irString
 import org.jetbrains.kotlin.ir.declarations.IrDeclaration
 import org.jetbrains.kotlin.ir.declarations.IrDeclarationBase
 import org.jetbrains.kotlin.ir.declarations.IrSimpleFunction
@@ -91,10 +92,9 @@ internal class PostInlineLowering(val context: Context) : BodyLoweringPass {
                         // Basic Multilingual Plane, so we could just append data "as is".
                         builder.append(value.toInt().toChar())
                     }
-                    expression.putValueArgument(0, IrConstImpl(
-                            expression.startOffset, expression.endOffset,
-                            context.irBuiltIns.stringType,
-                            IrConstKind.String, builder.toString()))
+                    return data.irCall(context.ir.symbols.immutableBlobOfImpl).apply {
+                        putValueArgument(0, data.irString(builder.toString()))
+                    }
                 }
 
                 return expression
diff --git a/kotlin-native/runtime/src/main/kotlin/kotlin/native/internal/RuntimeUtils.kt b/kotlin-native/runtime/src/main/kotlin/kotlin/native/internal/RuntimeUtils.kt
index 11446b7d74b..3c57d8d9080 100644
--- a/kotlin-native/runtime/src/main/kotlin/kotlin/native/internal/RuntimeUtils.kt
+++ b/kotlin-native/runtime/src/main/kotlin/kotlin/native/internal/RuntimeUtils.kt
@@ -264,3 +264,7 @@ internal fun KonanObjectToUtf8Array(value: Any?): ByteArray {
     }
     return string.encodeToByteArray()
 }
+
+@PublishedApi
+@TypedIntrinsic(IntrinsicType.IMMUTABLE_BLOB)
+internal external fun immutableBlobOfImpl(data: String): ImmutableBlob