diff --git a/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/SymbolLightClassForInterfaceDefaultImpls.kt b/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/SymbolLightClassForInterfaceDefaultImpls.kt
index 0589cab1983..388a1a33503 100644
--- a/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/SymbolLightClassForInterfaceDefaultImpls.kt
+++ b/analysis/symbol-light-classes/src/org/jetbrains/kotlin/light/classes/symbol/classes/SymbolLightClassForInterfaceDefaultImpls.kt
@@ -48,8 +48,13 @@ internal class SymbolLightClassForInterfaceDefaultImpls(private val containingCl
     override fun isAnnotationType(): Boolean = false
     override fun isEnum(): Boolean = false
     override fun hasTypeParameters(): Boolean = false
-    override fun isInheritor(baseClass: PsiClass, checkDeep: Boolean): Boolean = false
+    override fun isInheritor(baseClass: PsiClass, checkDeep: Boolean): Boolean =
+        baseClass.qualifiedName == CommonClassNames.JAVA_LANG_OBJECT
+
+    override fun getExtendsListTypes(): Array<PsiClassType?> = PsiClassType.EMPTY_ARRAY
     override fun getExtendsList(): PsiReferenceList? = null
+    override fun getImplementsListTypes(): Array<PsiClassType?> = PsiClassType.EMPTY_ARRAY
+    override fun getImplementsList(): PsiReferenceList? = null
 
     @Throws(IncorrectOperationException::class)
     override fun setName(name: String): PsiElement {
diff --git a/analysis/symbol-light-classes/testData/structureByFqName/DefaultImpls.inh.txt b/analysis/symbol-light-classes/testData/structureByFqName/DefaultImpls.inh.txt
index 36619de6524..6bb5f9310fe 100644
--- a/analysis/symbol-light-classes/testData/structureByFqName/DefaultImpls.inh.txt
+++ b/analysis/symbol-light-classes/testData/structureByFqName/DefaultImpls.inh.txt
@@ -1,2 +1,2 @@
-one.two.MyInterface.DefaultImpls|java.lang.Object|false| -> false
-one.two.MyInterface.DefaultImpls|java.lang.Object|true| -> false
+one.two.MyInterface.DefaultImpls|java.lang.Object|false| -> true
+one.two.MyInterface.DefaultImpls|java.lang.Object|true| -> true