diff --git a/src/sysupdate/sysupdated.c b/src/sysupdate/sysupdated.c
index a9740ee8542..4eeaf3a7062 100644
--- a/src/sysupdate/sysupdated.c
+++ b/src/sysupdate/sysupdated.c
@@ -543,7 +543,7 @@ static int job_start(Job *j) {
         r = sd_event_source_set_child_process_own(j->child, true);
         if (r < 0)
                 return log_error_errno(r, "Event loop failed to take ownership of child process: %m");
-        TAKE_PIDREF(pid);
+        pidref_done(&pid); /* disarm sigkill_wait */
 
         j->stdout_fd = TAKE_FD(stdout_fd);
 
diff --git a/src/udev/udev-watch.c b/src/udev/udev-watch.c
index 76de67733f4..10cbc848460 100644
--- a/src/udev/udev-watch.c
+++ b/src/udev/udev-watch.c
@@ -208,11 +208,6 @@ static int synthesize_change(Manager *manager, sd_device *dev) {
                 return 0;
         }
 
-        r = sd_event_source_set_child_pidfd_own(s, true);
-        if (r < 0)
-                return r;
-        TAKE_PIDREF(pidref);
-
         r = set_ensure_put(&manager->synthesize_change_child_event_sources, &event_source_hash_ops, s);
         if (r < 0)
                 return r;