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,
             },
         },
 
diff --git a/app/matrix/lib/media-repo.libsonnet b/app/matrix/lib/media-repo.libsonnet
index e81c32a..7b7500f 100644
--- a/app/matrix/lib/media-repo.libsonnet
+++ b/app/matrix/lib/media-repo.libsonnet
@@ -22,6 +22,7 @@
             password: error "cfg.db.password needs to be set",
             database: error "cfg.db.database needs to be set",
             host: error "cfg.db.host needs to be set",
+            port: error "cfg.db.port needs to be set",
         },
     },
 
@@ -34,7 +35,7 @@
             useForwardedHost: false,
         },
         database: {
-            postgres: "postgres://%s:%s@%s/%s?sslmode=disable" % [cfg.db.username, cfg.db.password, cfg.db.host, cfg.db.database],
+            postgres: "postgres://%s:%s@%s:%d/%s?sslmode=disable" % [cfg.db.username, cfg.db.password, cfg.db.host, cfg.db.port, cfg.db.database],
         },
         homeservers: cfg.homeservers,
         admins: cfg.admins,