diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/AsmUtil.java b/compiler/backend/src/org/jetbrains/kotlin/codegen/AsmUtil.java
index 7acfdf238d5..1a3776aea4c 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/AsmUtil.java
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/AsmUtil.java
@@ -703,12 +703,9 @@ public class AsmUtil {
     }
 
     public static boolean isPropertyWithBackingFieldCopyInOuterClass(@NotNull PropertyDescriptor propertyDescriptor) {
-        boolean isExtensionProperty = propertyDescriptor.getExtensionReceiverParameter() != null;
         DeclarationDescriptor propertyContainer = propertyDescriptor.getContainingDeclaration();
-        return !propertyDescriptor.isVar()
-               && !isExtensionProperty
+        return propertyDescriptor.isConst()
                && isCompanionObject(propertyContainer) && isInterface(propertyContainer.getContainingDeclaration())
-               && areBothAccessorDefault(propertyDescriptor)
                && getVisibilityForSpecialPropertyBackingField(propertyDescriptor, false) == ACC_PUBLIC;
     }
 
diff --git a/compiler/backend/src/org/jetbrains/kotlin/codegen/ImplementationBodyCodegen.java b/compiler/backend/src/org/jetbrains/kotlin/codegen/ImplementationBodyCodegen.java
index 5790e5d6270..79face1c6ce 100644
--- a/compiler/backend/src/org/jetbrains/kotlin/codegen/ImplementationBodyCodegen.java
+++ b/compiler/backend/src/org/jetbrains/kotlin/codegen/ImplementationBodyCodegen.java
@@ -873,7 +873,7 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
             PropertyDescriptor property = info.descriptor;
 
             Type type = typeMapper.mapType(property);
-            int modifiers = ACC_STATIC | ACC_FINAL | ACC_PUBLIC | (property.isConst() ? 0 : ACC_DEPRECATED);
+            int modifiers = ACC_STATIC | ACC_FINAL | ACC_PUBLIC;
             FieldVisitor fv = v.newField(JvmDeclarationOriginKt.Synthetic(DescriptorToSourceUtils.descriptorToDeclaration(property), property),
                                          modifiers, context.getFieldName(property, false),
                                          type.getDescriptor(), typeMapper.mapFieldSignature(property.getType(), property),
diff --git a/compiler/testData/codegen/boxWithJava/properties/classObjectProperties/Test.java b/compiler/testData/codegen/boxWithJava/properties/classObjectProperties/Test.java
index faeab128d3b..06605a89d36 100644
--- a/compiler/testData/codegen/boxWithJava/properties/classObjectProperties/Test.java
+++ b/compiler/testData/codegen/boxWithJava/properties/classObjectProperties/Test.java
@@ -8,9 +8,6 @@ class Test {
         s = Trait.NAME;
         if (!s.equals("Trait")) throw new AssertionError("Fail interface: " + s);
 
-        s = Trait.DEPRECATED;
-        if (!s.equals("DEPRECATED")) throw new AssertionError("Fail interface: " + s);
-
         s = Enoom.NAME;
         if (!s.equals("Enum")) throw new AssertionError("Fail enum: " + s);
 
diff --git a/compiler/testData/codegen/boxWithJava/properties/classObjectProperties/classObjectProperties.kt b/compiler/testData/codegen/boxWithJava/properties/classObjectProperties/classObjectProperties.kt
index c019de4c440..dd66557abe3 100644
--- a/compiler/testData/codegen/boxWithJava/properties/classObjectProperties/classObjectProperties.kt
+++ b/compiler/testData/codegen/boxWithJava/properties/classObjectProperties/classObjectProperties.kt
@@ -7,7 +7,6 @@ class Klass {
 interface Trait {
     companion object {
         const val NAME = "Trait"
-        val DEPRECATED = "DEPRECATED"
     }
 }
 
diff --git a/compiler/testData/writeFlags/property/classObject/trait/internalVal.kt b/compiler/testData/writeFlags/property/classObject/trait/internalVal.kt
index 6244d1be04c..e4c3afc4d11 100644
--- a/compiler/testData/writeFlags/property/classObject/trait/internalVal.kt
+++ b/compiler/testData/writeFlags/property/classObject/trait/internalVal.kt
@@ -6,7 +6,7 @@ interface Test {
 
 // TESTED_OBJECT_KIND: property
 // TESTED_OBJECTS: Test, prop
-// FLAGS: ACC_PUBLIC, ACC_FINAL, ACC_STATIC, ACC_DEPRECATED
+// ABSENT: TRUE
 
 // TESTED_OBJECT_KIND: property
 // TESTED_OBJECTS: Test$Companion, prop
diff --git a/compiler/testData/writeFlags/property/classObject/trait/publicVal.kt b/compiler/testData/writeFlags/property/classObject/trait/publicVal.kt
index 98ca9fbab70..78ff25b41ee 100644
--- a/compiler/testData/writeFlags/property/classObject/trait/publicVal.kt
+++ b/compiler/testData/writeFlags/property/classObject/trait/publicVal.kt
@@ -6,7 +6,7 @@ interface Test {
 
 // TESTED_OBJECT_KIND: property
 // TESTED_OBJECTS: Test, prop
-// FLAGS: ACC_PUBLIC, ACC_FINAL, ACC_STATIC, ACC_DEPRECATED
+// ABSENT: TRUE
 
 // TESTED_OBJECT_KIND: property
 // TESTED_OBJECTS: Test$Companion, prop