diff --git a/src/shared/bus-log-control-api.h b/src/shared/bus-log-control-api.h
index b1d00b38bc..3e654d7d81 100644
--- a/src/shared/bus-log-control-api.h
+++ b/src/shared/bus-log-control-api.h
@@ -1,4 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1+ */
+#pragma once
 
 #include "sd-bus.h"