diff --git a/registry/source/keyimpl.hxx b/registry/source/keyimpl.hxx
index 4bfbcec3b7b7..83d80a30bd26 100644
--- a/registry/source/keyimpl.hxx
+++ b/registry/source/keyimpl.hxx
@@ -17,8 +17,7 @@
  *   the License at http://www.apache.org/licenses/LICENSE-2.0 .
  */
 
-#ifndef INCLUDED_REGISTRY_SOURCE_KEYIMPL_HXX
-#define INCLUDED_REGISTRY_SOURCE_KEYIMPL_HXX
+#pragma once
 
 #include <sal/config.h>
 
@@ -134,7 +133,4 @@ private:
     ORegistry*               m_pRegistry;
 };
 
-#endif
-
-
 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */