diff --git a/llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h b/llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h
index 465829159e42b4..0cfe04af6f9ef3 100644
--- a/llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h
+++ b/llvm/include/llvm/CodeGen/DbgEntityHistoryCalculator.h
@@ -12,6 +12,7 @@
 #include "llvm/ADT/MapVector.h"
 #include "llvm/ADT/PointerIntPair.h"
 #include "llvm/ADT/SmallVector.h"
+#include "llvm/CodeGen/MachineInstr.h"
 #include <utility>
 
 namespace llvm {
@@ -20,7 +21,6 @@ class DILocation;
 class LexicalScopes;
 class DINode;
 class MachineFunction;
-class MachineInstr;
 class TargetRegisterInfo;
 
 /// Record instruction ordering so we can query their relative positions within