diff --git a/compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java b/compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java
index 2fea14037c3..47a94a62d46 100644
--- a/compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java
+++ b/compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java
@@ -124,8 +124,9 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
                 isFinal = true;
             }
         }
-        else if (myClass.getParent() instanceof JetClassObject) {
-            isStatic = true;
+        else {
+            isStatic = myClass.getParent() instanceof JetClassObject;
+            isFinal = true;
         }
 
         int access = 0;