diff --git a/lib/Sema/SemaDecl.cpp b/lib/Sema/SemaDecl.cpp
index b76126a..fd89507 100644
--- a/lib/Sema/SemaDecl.cpp
+++ b/lib/Sema/SemaDecl.cpp
@@ -3398,6 +3398,8 @@
                                 Record->getIdentifier(), Record);
       InjectedClassName->setImplicit();
       PushOnScopeChains(InjectedClassName, S);
+      assert(InjectedClassName->isInjectedClassName() && 
+             "Broken injected-class-name");
     }
   }
 }