diff --git a/bottles/frontend/main.py b/bottles/frontend/main.py
index a879b1f3fa..b51059b6bd 100644
--- a/bottles/frontend/main.py
+++ b/bottles/frontend/main.py
@@ -369,7 +369,7 @@ def set_path(_dialog, response):
             if response != Gtk.ResponseType.ACCEPT:
                 return
 
-            def finish(result, error=False):
+            def finish(_widget, result, error=False):
                 if result.status:
                     self.win.show_toast(_("Configuration imported successfully"))
                 else:
@@ -409,7 +409,7 @@ def set_path(_dialog, response):
             if response != Gtk.ResponseType.ACCEPT:
                 return
 
-            def finish(result, error=False):
+            def finish(_widget, result, error=False):
                 if result.status:
                     self.win.show_toast(_("Backup restored successfully"))
                 else:
@@ -418,7 +418,7 @@ def finish(result, error=False):
             self.win.show_toast(_("Importing backup…"))
             RunAsync(
                 task_func=BackupManager.import_backup,
-                callback=self.finish,
+                callback=finish,
                 window=self.win,
                 scope="full",
                 path=dialog.get_file().get_path(),