1 files changed, 1 insertions, 4 deletions
diff --git a/Source/cmWorkerPool.h b/Source/cmWorkerPool.h
index 91799223a0..0fb6707244 100644
--- a/Source/cmWorkerPool.h
+++ b/Source/cmWorkerPool.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 cmWorkerPool_h
-#define cmWorkerPool_h
+#pragma once
 
 #include "cmConfigure.h" // IWYU pragma: keep
 
@@ -221,5 +220,3 @@ private:
   unsigned int ThreadCount_ = 1;
   std::unique_ptr<cmWorkerPoolInternal> Int_;
 };
-
-#endif