diff --git a/microsite/sidebars.json b/microsite/sidebars.json
index 6bbf9246ed..a1d8cfbf88 100644
--- a/microsite/sidebars.json
+++ b/microsite/sidebars.json
@@ -431,11 +431,6 @@
           "frontend-system/architecture/references"
         ]
       },
-      {
-        "type": "category",
-        "label": "Building Apps",
-        "items": ["frontend-system/building-apps/migrating"]
-      },
       {
         "type": "category",
         "label": "Building Plugins",
@@ -452,7 +447,8 @@
         "label": "Building Apps",
         "items": [
           "frontend-system/building-apps/index",
-          "frontend-system/building-apps/built-in-extensions"
+          "frontend-system/building-apps/built-in-extensions",
+          "frontend-system/building-apps/migrating"
         ]
       },
       {