1 files changed, 1 insertions, 1 deletions
diff --git a/src/tree.c b/src/tree.c
index 7b46667..c7477c3 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -499,7 +499,7 @@ zenity_tree (ZenityData *data, ZenityTreeData *tree_data)
   zenity_util_show_dialog (dialog);
 
   if(data->timeout_delay > 0) {
-    g_timeout_add_seconds (data->timeout_delay, (GSourceFunc) zenity_util_timeout_handle, NULL);
+    g_timeout_add_seconds (data->timeout_delay, (GSourceFunc) zenity_util_timeout_handle, dialog);
   }
 
   gtk_main ();