diff --git a/memdocs/configmgr/mdt/index.yml b/memdocs/configmgr/mdt/index.yaml
similarity index 98%
rename from memdocs/configmgr/mdt/index.yml
rename to memdocs/configmgr/mdt/index.yaml
index 7347ff9043a..838d2433798 100644
--- a/memdocs/configmgr/mdt/index.yml
+++ b/memdocs/configmgr/mdt/index.yaml
@@ -79,4 +79,4 @@ landingContent:
           - text: UDI developer's guide
             url: user-driven-installation-developers-guide.md
           - text: UDI Reference
-            url: udi-reference.md
\ No newline at end of file
+            url: udi-reference.md