diff --git a/_plugins/top_navigation.rb b/_plugins/top_navigation.rb
index a2a2b9a..7bb423d 100644
--- a/_plugins/top_navigation.rb
+++ b/_plugins/top_navigation.rb
@@ -29,6 +29,7 @@
     "blazor" => "blazor-ui",
     "ar-vr" => "vr-lab",
     "tech-style-guide" => "store",
+    "themebuilder" => "themebuilder",
     "winui" => "win-ui",
     "unite-ux" => "unite-ux",    
     "unity-xr" => "vr-lab"