diff --git a/Sema/SemaDecl.cpp b/Sema/SemaDecl.cpp
index d5ca796..cdcb024 100644
--- a/Sema/SemaDecl.cpp
+++ b/Sema/SemaDecl.cpp
@@ -25,9 +25,6 @@
 #include "llvm/Config/config.h" 
 #include "llvm/ADT/SmallString.h"
 #include "llvm/ADT/SmallSet.h"
-#if !defined(LLVM_ON_WIN32)
-#include <alloca.h>
-#endif
 using namespace clang;
 
 Sema::DeclTy *Sema::isTypeName(const IdentifierInfo &II, Scope *S) const {