1 files changed, 1 insertions, 4 deletions
diff --git a/Source/cmSystemTools.h b/Source/cmSystemTools.h
index 3e30b40..1362af8 100644
--- a/Source/cmSystemTools.h
+++ b/Source/cmSystemTools.h
@@ -1,7 +1,6 @@
 /* Distributed under the OSI-approved BSD 3-Clause License.  See accompanying
    file Copyright.txt or https://cmake.org/licensing for details.  */
-#ifndef cmSystemTools_h
-#define cmSystemTools_h
+#pragma once
 
 #include "cmConfigure.h" // IWYU pragma: keep
 
@@ -465,5 +464,3 @@ private:
   static bool s_FatalErrorOccured;
   static bool s_DisableRunCommandOutput;
 };
-
-#endif