diff --git a/lib/CodeGen/CGObjCGNU.cpp b/lib/CodeGen/CGObjCGNU.cpp
index 2436357..119819b 100644
--- a/lib/CodeGen/CGObjCGNU.cpp
+++ b/lib/CodeGen/CGObjCGNU.cpp
@@ -1634,7 +1634,7 @@
   const ObjCCategoryImplDecl *OCD =
     dyn_cast<ObjCCategoryImplDecl>(OMD->getDeclContext());
   std::string CategoryName = OCD ? OCD->getNameAsString() : "";
-  std::string ClassName = OMD->getClassInterface()->getNameAsString();
+  std::string ClassName = CD->getName();
   std::string MethodName = OMD->getSelector().getAsString();
   bool isClassMethod = !OMD->isInstanceMethod();