diff --git a/llvm/include/llvm/Target/SubtargetFeature.h b/llvm/include/llvm/Target/SubtargetFeature.h
index 4213d9b12ed0..cbd2c3b63029 100644
--- a/llvm/include/llvm/Target/SubtargetFeature.h
+++ b/llvm/include/llvm/Target/SubtargetFeature.h
@@ -20,7 +20,6 @@
 
 #include <string>
 #include <vector>
-#include <cstring>
 #include "llvm/ADT/Triple.h"
 #include "llvm/Support/DataTypes.h"