diff --git a/src/udev/udev-event.c b/src/udev/udev-event.c
index e1c3e430ea..309cfebc8d 100644
--- a/src/udev/udev-event.c
+++ b/src/udev/udev-event.c
@@ -370,7 +370,7 @@ static ssize_t udev_event_subst_format(
         }
         case FORMAT_SUBST_PARENT:
                 r = sd_device_get_parent(dev, &parent);
-                if (r == -ENODEV)
+                if (r == -ENOENT)
                         goto null_terminate;
                 if (r < 0)
                         return r;