diff --git a/lib/Sema/SemaTemplate.cpp b/lib/Sema/SemaTemplate.cpp
index 1c2484d..1a0d96a 100644
--- a/lib/Sema/SemaTemplate.cpp
+++ b/lib/Sema/SemaTemplate.cpp
@@ -518,7 +518,7 @@
   SourceLocation PreviousDefaultArgLoc;
 
   // Self initialization to avoid warnings.
-  TemplateParameterList::iterator OldParam = OldParam;
+  TemplateParameterList::iterator OldParam = NewParams->end();
   if (OldParams)
     OldParam = OldParams->begin();