diff --git a/src/llvm/StringMap.h b/src/llvm/StringMap.h
index de1062c720..acee21c76f 100644
--- a/src/llvm/StringMap.h
+++ b/src/llvm/StringMap.h
@@ -147,7 +147,6 @@ public:
     // terminator.
     unsigned AllocSize = static_cast<unsigned>(sizeof(StringMapEntry))+
       KeyLength+1;
-    unsigned Alignment = alignof(StringMapEntry);
 
     StringMapEntry *NewItem =
       static_cast<StringMapEntry*>(std::malloc(AllocSize));