diff --git a/app/src/plugin/loader.ts b/app/src/plugin/loader.ts
index b8b9564cf..bbe66899f 100644
--- a/app/src/plugin/loader.ts
+++ b/app/src/plugin/loader.ts
@@ -225,7 +225,7 @@ export const afterLoadPlugin = (plugin: Plugin) => {
     });
     Object.keys(plugin.docks).forEach(key => {
         const dock = plugin.docks[key];
-        const hotkey = window.siyuan.config.keymap.plugin[plugin.name][key].custom;
+        const hotkey = window.siyuan.config.keymap.plugin[plugin.name] ? window.siyuan.config.keymap.plugin[plugin.name][key]?.custom : undefined;
         if (dock.config.position.startsWith("Left")) {
             window.siyuan.layout.leftDock.genButton([{
                 type: key,