diff --git a/gio/glocalfilemonitor.c b/gio/glocalfilemonitor.c
index eccab231c..dc32fb660 100644
--- a/gio/glocalfilemonitor.c
+++ b/gio/glocalfilemonitor.c
@@ -555,8 +555,8 @@ g_file_monitor_source_dispatch (GSource     *source,
 
   g_file_monitor_source_update_ready_time (fms);
 
-  g_clear_object (&instance);
   g_mutex_unlock (&fms->lock);
+  g_clear_object (&instance);
 
   /* We now have our list of events to deliver */
   while ((event = g_queue_pop_head (&event_queue)))