diff --git a/.gitignore b/.gitignore
index f8721e67fa..cad26d1a88 100644
--- a/.gitignore
+++ b/.gitignore
@@ -13,6 +13,7 @@
 # ignore all apps except core ones
 /apps*/*
 !/apps/accessibility
+!/apps/cloud_federation_api
 !/apps/comments
 !/apps/dav
 !/apps/files