diff --git a/src/hibernate-resume/hibernate-resume-config.h b/src/hibernate-resume/hibernate-resume-config.h
index a77d29c891..364abf7912 100644
--- a/src/hibernate-resume/hibernate-resume-config.h
+++ b/src/hibernate-resume/hibernate-resume-config.h
@@ -1,4 +1,5 @@
 /* SPDX-License-Identifier: LGPL-2.1-or-later */
+#pragma once
 
 #include <stdbool.h>