diff --git a/include/llvm/CodeGen/MachineFrameInfo.h b/include/llvm/CodeGen/MachineFrameInfo.h
index f8bf14ab018..7d75c2d5c27 100644
--- a/include/llvm/CodeGen/MachineFrameInfo.h
+++ b/include/llvm/CodeGen/MachineFrameInfo.h
@@ -235,6 +235,7 @@ public:
     LocalFrameSize = 0;
     LocalFrameBaseOffset = 0;
     LocalFrameMaxAlign = 0;
+    UseLocalStackAllocationBlock = false;
   }
 
   /// hasStackObjects - Return true if there are any stack objects in this