diff --git a/compiler/backend/src/org/jetbrains/jet/codegen/ClosureCodegen.java b/compiler/backend/src/org/jetbrains/jet/codegen/ClosureCodegen.java
index 073b8213b23..eb7f20ff1d6 100644
--- a/compiler/backend/src/org/jetbrains/jet/codegen/ClosureCodegen.java
+++ b/compiler/backend/src/org/jetbrains/jet/codegen/ClosureCodegen.java
@@ -101,7 +101,7 @@ public class ClosureCodegen extends GenerationStateAware {
                                    : new String[] {JvmClassName.byClassDescriptor(samInterface).getInternalName()};
         cv.defineClass(fun,
                        V1_6,
-                       ACC_FINAL,
+                       ACC_FINAL | ACC_SUPER,
                        name.getInternalName(),
                        null,
                        superclass.getInternalName(),
diff --git a/compiler/backend/src/org/jetbrains/jet/codegen/TraitImplBodyCodegen.java b/compiler/backend/src/org/jetbrains/jet/codegen/TraitImplBodyCodegen.java
index ab4760b9fac..47042069858 100644
--- a/compiler/backend/src/org/jetbrains/jet/codegen/TraitImplBodyCodegen.java
+++ b/compiler/backend/src/org/jetbrains/jet/codegen/TraitImplBodyCodegen.java
@@ -31,7 +31,7 @@ public class TraitImplBodyCodegen extends ClassBodyCodegen {
     @Override
     protected void generateDeclaration() {
         v.defineClass(myClass, V1_6,
-                      ACC_PUBLIC | ACC_FINAL/*| Opcodes.ACC_SUPER*/,
+                      ACC_PUBLIC | ACC_FINAL,
                       jvmName(),
                       null,
                       "java/lang/Object",