diff --git a/include/llvm/IR/PatternMatch.h b/include/llvm/IR/PatternMatch.h
index f3d78436751..47830628790 100644
--- a/include/llvm/IR/PatternMatch.h
+++ b/include/llvm/IR/PatternMatch.h
@@ -32,6 +32,7 @@
 #include "llvm/IR/CallSite.h"
 #include "llvm/IR/Constants.h"
 #include "llvm/IR/Instructions.h"
+#include "llvm/IR/Intrinsics.h"
 #include "llvm/IR/Operator.h"
 
 namespace llvm {