diff --git a/lib/CodeGen/CGDebugInfo.cpp b/lib/CodeGen/CGDebugInfo.cpp
index 9743b96..10ef6d8 100644
--- a/lib/CodeGen/CGDebugInfo.cpp
+++ b/lib/CodeGen/CGDebugInfo.cpp
@@ -1205,7 +1205,7 @@
     llvm::StringRef PropertyName;
     llvm::StringRef PropertyGetter;
     llvm::StringRef PropertySetter;
-    unsigned PropertyAttributes;
+    unsigned PropertyAttributes = 0;
     if (ObjCPropertyDecl *PD =
         ID->FindPropertyVisibleInPrimaryClass(Field->getIdentifier())) {
       PropertyName = PD->getName();