1 files changed, 1 insertions, 4 deletions
diff --git a/Source/cmSourceGroup.h b/Source/cmSourceGroup.h
index 623cded23..295240d77 100644
--- a/Source/cmSourceGroup.h
+++ b/Source/cmSourceGroup.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 cmSourceGroup_h
-#define cmSourceGroup_h
+#pragma once
 
 #include "cmConfigure.h" // IWYU pragma: keep
 
@@ -125,5 +124,3 @@ private:
 
   std::unique_ptr<cmSourceGroupInternals> Internal;
 };
-
-#endif