diff --git a/include/llvm/CodeGen/FastISel.h b/include/llvm/CodeGen/FastISel.h
index b1f73cba30c..a1752d35344 100644
--- a/include/llvm/CodeGen/FastISel.h
+++ b/include/llvm/CodeGen/FastISel.h
@@ -18,6 +18,7 @@
 #ifndef NDEBUG
 #include "llvm/ADT/SmallSet.h"
 #endif
+#include "llvm/CodeGen/ValueTypes.h"
 
 namespace llvm {