diff --git a/app/matrix/lib/matrix-ng.libsonnet b/app/matrix/lib/matrix-ng.libsonnet
index a807a1a..2edc2ee 100644
--- a/app/matrix/lib/matrix-ng.libsonnet
+++ b/app/matrix/lib/matrix-ng.libsonnet
@@ -190,6 +190,7 @@
                 password: error "mediaRepo.db.password needs to be set",
                 database: "mediarepo",
                 host: "waw3-postgres",
+                port: 5432,
             },
         },