diff --git a/organization.properties b/organization.properties
index f04107d..6f6f5b3 100644
--- a/organization.properties
+++ b/organization.properties
@@ -41,6 +41,7 @@ subs.opensondage = https://gitea.linux07.fr/Linux07/Statistiques/raw/branch/main
 subs.mobilizon = https://gitea.linux07.fr/Linux07/Statistiques/raw/branch/main/service-mobilizon.properties
 subs.nextcloud = https://gitea.linux07.fr/Linux07/Statistiques/raw/branch/main/service-nextcloud.properties
 subs.cryptpad = https://gitea.linux07.fr/Linux07/Statistiques/raw/branch/main/service-cryptpad.properties
+subs.mattermost = https://gitea.linux07.fr/Linux07/Statistiques/raw/branch/main/service-mattermost.properties
 subs.libreto = https://gitea.linux07.fr/Linux07/Statistiques/raw/branch/main/service-libreto.properties
 
 # [Metrics]