diff --git a/include/llvm/CodeGen/SchedGraphCommon.h b/include/llvm/CodeGen/SchedGraphCommon.h
index 8501448fe22..cc2b6036d98 100644
--- a/include/llvm/CodeGen/SchedGraphCommon.h
+++ b/include/llvm/CodeGen/SchedGraphCommon.h
@@ -9,6 +9,7 @@
 #define LLVM_CODEGEN_SCHEDGRAPHCOMMON_H
 
 #include "llvm/Value.h"
+#include <vector>
 
 class SchedGraphEdge;
 class SchedGraphNode;