diff --git a/src/core/mount-setup.c b/src/core/mount-setup.c
index 163b35f83ab..1782d407206 100644
--- a/src/core/mount-setup.c
+++ b/src/core/mount-setup.c
@@ -27,6 +27,7 @@
 
 #include "mount-setup.h"
 #include "dev-setup.h"
+#include "bus-util.h"
 #include "log.h"
 #include "macro.h"
 #include "util.h"