diff --git a/lib/Sema/SemaChecking.cpp b/lib/Sema/SemaChecking.cpp
index c7b9cb7..30a6ab4 100644
--- a/lib/Sema/SemaChecking.cpp
+++ b/lib/Sema/SemaChecking.cpp
@@ -506,6 +506,7 @@
   }
 
   // Determine whether the current function is variadic or not.
+  BlockScopeInfo *CurBlock = getCurBlock();
   bool isVariadic;
   if (CurBlock)
     isVariadic = CurBlock->isVariadic;