1 files changed, 5 insertions, 5 deletions

diff --git a/src/tree.c b/src/tree.c
index f3e6377..903ef70 100644
--- a/src/tree.c
+++ b/src/tree.c
@@ -279,7 +279,7 @@ zenity_tree (ZenityData *data, ZenityTreeData *tree_data)
   glade_dialog = zenity_util_load_glade_file ("zenity_tree_dialog");
 
   if (glade_dialog == NULL) {
-    data->exit_code = -1;
+    data->exit_code = zenity_util_return_exit_code (ZENITY_ERROR);
     return;
   }
         
@@ -289,7 +289,7 @@ zenity_tree (ZenityData *data, ZenityTreeData *tree_data)
 
   if (n_columns == 0) {
     g_printerr (_("No column titles specified for List dialog.\n")); 
-    data->exit_code = -1;
+    data->exit_code = zenity_util_return_exit_code (ZENITY_ERROR);
     return;
   }
 
@@ -517,18 +517,18 @@ zenity_tree_dialog_response (GtkWidget *widget, int response, gpointer data)
                                              GTK_TREE_VIEW (tree_view));
       }
       zenity_tree_dialog_output ();
-      zen_data->exit_code = 0;
+      zen_data->exit_code = zenity_util_return_exit_code (ZENITY_OK);
       gtk_main_quit ();
       break;
 
     case GTK_RESPONSE_CANCEL:
-      zen_data->exit_code = 1;
+      zen_data->exit_code = zenity_util_return_exit_code (ZENITY_CANCEL);
       gtk_main_quit ();
       break;
 
     default:
       /* Esc dialog */
-      zen_data->exit_code = 1;
+      zen_data->exit_code = zenity_util_return_exit_code (ZENITY_ESC);
       break;
   }
 }