1 files changed, 1 insertions, 5 deletions
diff --git a/rts/STM.h b/rts/STM.h
index 6dfa20d0ee..e9e5e27cd9 100644
--- a/rts/STM.h
+++ b/rts/STM.h
@@ -30,8 +30,7 @@
 
 */
 
-#ifndef STM_H
-#define STM_H
+#pragma once
 
 #ifdef THREADED_RTS
 //#define STM_CG_LOCK
@@ -218,6 +217,3 @@ void stmWriteTVar(Capability *cap,
 /*----------------------------------------------------------------------*/
 
 #include "EndPrivate.h"
-
-#endif /* STM_H */
-