diff --git a/src/timesync/timesyncd-manager.c b/src/timesync/timesyncd-manager.c
index ca14253adf..5a3d478d73 100644
--- a/src/timesync/timesyncd-manager.c
+++ b/src/timesync/timesyncd-manager.c
@@ -1101,10 +1101,10 @@ int manager_new(Manager **ret) {
         if (r < 0)
                 return r;
 
-        sd_event_add_signal(m->event, NULL, SIGTERM, NULL,  NULL);
-        sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
+        (void) sd_event_add_signal(m->event, NULL, SIGTERM, NULL,  NULL);
+        (void) sd_event_add_signal(m->event, NULL, SIGINT, NULL, NULL);
 
-        sd_event_set_watchdog(m->event, true);
+        (void) sd_event_set_watchdog(m->event, true);
 
         r = sd_resolve_default(&m->resolve);
         if (r < 0)