diff --git a/src/cthulhu/plugin_system_manager.py b/src/cthulhu/plugin_system_manager.py
index a0f756e..d6a6b0c 100644
--- a/src/cthulhu/plugin_system_manager.py
+++ b/src/cthulhu/plugin_system_manager.py
@@ -149,7 +149,7 @@ class PluginSystemManager:
             if not hasattr(self, '_connected_to_script_changes'):
                 signal_manager = self.app.getSignalManager()
                 if signal_manager:
-                    signal_manager.connect('load-setting-completed', self._on_settings_changed)
+                    signal_manager.connectSignal('load-setting-completed', self._on_settings_changed, None)
                     self._connected_to_script_changes = True
         except Exception as e:
             logger.error(f"Error registering global keybindings for plugin {plugin.name}: {e}")