diff --git a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/IrUnimplementedOverridesStrategy.kt b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/IrUnimplementedOverridesStrategy.kt
index 47e9f127518..5ce37810107 100644
--- a/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/IrUnimplementedOverridesStrategy.kt
+++ b/compiler/ir/serialization.common/src/org/jetbrains/kotlin/backend/common/linkage/partial/IrUnimplementedOverridesStrategy.kt
@@ -7,20 +7,28 @@ package org.jetbrains.kotlin.backend.common.linkage.partial
 
 import org.jetbrains.kotlin.descriptors.Modality
 import org.jetbrains.kotlin.ir.declarations.IrClass
+import org.jetbrains.kotlin.ir.declarations.IrDeclarationOrigin
+import org.jetbrains.kotlin.ir.declarations.IrField
 import org.jetbrains.kotlin.ir.declarations.IrOverridableMember
 import org.jetbrains.kotlin.ir.linkage.partial.IrUnimplementedOverridesStrategy
 import org.jetbrains.kotlin.ir.linkage.partial.PartiallyLinkedDeclarationOrigin
+import org.jetbrains.kotlin.ir.types.isNothing
 
 internal object ImplementAsErrorThrowingStubs : IrUnimplementedOverridesStrategy {
     override fun <T : IrOverridableMember> computeCustomization(overridableMember: T, parent: IrClass) =
-        if (overridableMember.modality == Modality.ABSTRACT
-            && parent.modality != Modality.ABSTRACT
-            && parent.modality != Modality.SEALED
-        ) {
+        if (overridableMember.isAbstract && parent.isConcrete && !parent.delegatesToNothing) {
             IrUnimplementedOverridesStrategy.Customization(
                 origin = PartiallyLinkedDeclarationOrigin.UNIMPLEMENTED_ABSTRACT_CALLABLE_MEMBER,
                 modality = parent.modality // Use modality of class for implemented callable member.
             )
-        } else
-            IrUnimplementedOverridesStrategy.Customization.NO
+        } else IrUnimplementedOverridesStrategy.Customization.NO
+
+    private val IrOverridableMember.isAbstract: Boolean
+        get() = modality == Modality.ABSTRACT
+
+    private val IrClass.isConcrete: Boolean
+        get() = modality != Modality.ABSTRACT && modality != Modality.SEALED
+
+    private val IrClass.delegatesToNothing: Boolean
+        get() = declarations.any { it is IrField && it.origin == IrDeclarationOrigin.DELEGATE && it.type.isNothing() }
 }