diff --git a/llvm/include/llvm/CodeGen/TargetSchedule.h b/llvm/include/llvm/CodeGen/TargetSchedule.h
index aa6b82e14aa6e6..049ede89ab4618 100644
--- a/llvm/include/llvm/CodeGen/TargetSchedule.h
+++ b/llvm/include/llvm/CodeGen/TargetSchedule.h
@@ -15,7 +15,6 @@
 #ifndef LLVM_CODEGEN_TARGETSCHEDULE_H
 #define LLVM_CODEGEN_TARGETSCHEDULE_H
 
-#include "llvm/ADT/Optional.h"
 #include "llvm/ADT/SmallVector.h"
 #include "llvm/CodeGen/TargetSubtargetInfo.h"
 #include "llvm/Config/llvm-config.h"