diff --git a/src/client/theme-default/composables/sideBar.ts b/src/client/theme-default/composables/sideBar.ts
index 7781c5c6..96fb6b24 100644
--- a/src/client/theme-default/composables/sideBar.ts
+++ b/src/client/theme-default/composables/sideBar.ts
@@ -22,7 +22,7 @@ export function useSideBar() {
       return []
     }
 
-    // if it's `atuo`, render headers of the current page
+    // if it's `auto`, render headers of the current page
     if (frontSidebar === 'auto') {
       return resolveAutoSidebar(headers, sidebarDepth)
     }