diff --git a/metadata/com.mattermost.mattermost.txt b/metadata/com.mattermost.mattermost.txt
index eeaf9ec943..2e45e5c728 100644
--- a/metadata/com.mattermost.mattermost.txt
+++ b/metadata/com.mattermost.mattermost.txt
@@ -1,3 +1,4 @@
+AntiFeatures:UpstreamNonFree
 Categories:Internet
 License:Apache-2.0
 Web Site:https://about.mattermost.com/