diff --git a/llvm/include/llvm/Support/SHA256.h b/llvm/include/llvm/Support/SHA256.h
index 29270e1ad6583e..9e295b0b9fae51 100644
--- a/llvm/include/llvm/Support/SHA256.h
+++ b/llvm/include/llvm/Support/SHA256.h
@@ -19,8 +19,8 @@
  */
 //===----------------------------------------------------------------------===//
 
-#ifndef LLVM_SUPPORT_SHA2_H
-#define LLVM_SUPPORT_SHA2_H
+#ifndef LLVM_SUPPORT_SHA256_H
+#define LLVM_SUPPORT_SHA256_H
 
 #include <array>
 #include <cstdint>
@@ -87,4 +87,4 @@ class SHA256 {
 
 } // namespace llvm
 
-#endif // LLVM_SUPPORT_SHA2_H
+#endif // LLVM_SUPPORT_SHA256_H