diff --git a/llvm/lib/Target/TargetSchedInfo.cpp b/llvm/lib/Target/TargetSchedInfo.cpp
index 5aaffbc82822..4d2b5ed9f9ce 100644
--- a/llvm/lib/Target/TargetSchedInfo.cpp
+++ b/llvm/lib/Target/TargetSchedInfo.cpp
@@ -12,6 +12,7 @@
 //
 //===----------------------------------------------------------------------===//
 
+#include "llvm/Config/alloca.h"
 #include "llvm/Target/TargetSchedInfo.h"
 #include "llvm/Target/TargetMachine.h"
 #include <algorithm>