diff --git a/llvm/lib/Transforms/IPO/StripDeadPrototypes.cpp b/llvm/lib/Transforms/IPO/StripDeadPrototypes.cpp
index cc4a5ba08dd8..543c68e9ced3 100644
--- a/llvm/lib/Transforms/IPO/StripDeadPrototypes.cpp
+++ b/llvm/lib/Transforms/IPO/StripDeadPrototypes.cpp
@@ -17,6 +17,7 @@
 #include "llvm/Module.h"
 #include "llvm/ADT/Statistic.h"
 #include "llvm/Support/Debug.h"
+#include "llvm/Support/Compiler.h"
 #include <vector>
 using namespace llvm;