diff --git a/rEFIt_UEFI/refit/lib.cpp b/rEFIt_UEFI/refit/lib.cpp
index 79bf955ab..1da09c642 100644
--- a/rEFIt_UEFI/refit/lib.cpp
+++ b/rEFIt_UEFI/refit/lib.cpp
@@ -1748,9 +1748,11 @@ VOID DbgHeader(CONST CHAR8 *str)
   INTN len;
   UINTN end = AsciiSPrint(strLog, 50, "=== [ %a ] ", str);
   len = 50 - end;
-  for (INTN i = 0; i < len; i++) {
-    strLog[i + end] = '=';
-  }
+  // it causes memset generation ^(
+//  for (INTN i = 0; i < len; i++) {
+//    strLog[i + end] = '=';
+//  }
+  SetMem(&strLog[end], len , '=');
   strLog[49] = '\0';
   DebugLog (1, "%a\n", strLog);
 }