diff --git a/app/src/protyle/toolbar/index.ts b/app/src/protyle/toolbar/index.ts
index 44d7df389..4260d1db1 100644
--- a/app/src/protyle/toolbar/index.ts
+++ b/app/src/protyle/toolbar/index.ts
@@ -74,7 +74,9 @@ export class Toolbar {
                 if (typeof toolbarItem === "string" || Constants.INLINE_TYPE.concat("|").includes(toolbarItem.name) || !toolbarItem.hotkey) {
                     return
                 }
-                toolbarItem.hotkey = window.siyuan.config.keymap.plugin[item.name][toolbarItem.name].custom;
+                if (window.siyuan.config.keymap.plugin && window.siyuan.config.keymap.plugin[item.name] && window.siyuan.config.keymap.plugin[item.name][toolbarItem.name]) {
+                    toolbarItem.hotkey = window.siyuan.config.keymap.plugin[item.name][toolbarItem.name].custom;
+                }
             })
             options.toolbar = toolbarKeyToMenu(pluginToolbar);
         });
@@ -93,7 +95,9 @@ export class Toolbar {
                 if (typeof toolbarItem === "string" || Constants.INLINE_TYPE.concat("|").includes(toolbarItem.name) || !toolbarItem.hotkey) {
                     return
                 }
-                toolbarItem.hotkey = window.siyuan.config.keymap.plugin[item.name][toolbarItem.name].custom;
+                if (window.siyuan.config.keymap.plugin && window.siyuan.config.keymap.plugin[item.name] && window.siyuan.config.keymap.plugin[item.name][toolbarItem.name]) {
+                    toolbarItem.hotkey = window.siyuan.config.keymap.plugin[item.name][toolbarItem.name].custom;
+                }
             })
             protyle.options.toolbar = toolbarKeyToMenu(pluginToolbar);
         });