diff --git a/compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java b/compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java
index 391038b7987..dafc0b69fe1 100644
--- a/compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java
+++ b/compiler/backend/src/org/jetbrains/jet/codegen/ImplementationBodyCodegen.java
@@ -395,10 +395,6 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
             return;
         }
 
-        if (kind != OwnerKind.IMPLEMENTATION) {
-            throw new IllegalStateException("must be impl to reach this code: " + kind);
-        }
-
         for (JetDelegationSpecifier specifier : delegationSpecifiers) {
             if (specifier instanceof JetDelegatorToSuperClass || specifier instanceof JetDelegatorToSuperCall) {
                 JetType superType = bindingContext.get(BindingContext.TYPE, specifier.getTypeReference());
@@ -1148,10 +1144,6 @@ public class ImplementationBodyCodegen extends ClassBodyCodegen {
     private void generatePrimaryConstructor(final DelegationFieldsInfo delegationFieldsInfo) {
         if (ignoreIfTraitOrAnnotation()) return;
 
-        if (kind != OwnerKind.IMPLEMENTATION) {
-            throw new IllegalStateException("incorrect kind for primary constructor: " + kind);
-        }
-
         final MutableClosure closure = context.closure;
         ConstructorDescriptor constructorDescriptor = bindingContext.get(BindingContext.CONSTRUCTOR, myClass);
 
diff --git a/compiler/backend/src/org/jetbrains/jet/codegen/OwnerKind.java b/compiler/backend/src/org/jetbrains/jet/codegen/OwnerKind.java
index f7e590a3025..dfc6c93c52e 100644
--- a/compiler/backend/src/org/jetbrains/jet/codegen/OwnerKind.java
+++ b/compiler/backend/src/org/jetbrains/jet/codegen/OwnerKind.java
@@ -21,5 +21,5 @@ public enum OwnerKind {
 
     IMPLEMENTATION,
 
-    TRAIT_IMPL;
+    TRAIT_IMPL
 }