diff --git a/conf/sources-dist.json b/conf/sources-dist.json
index 430aea5682..1da289efac 100644
--- a/conf/sources-dist.json
+++ b/conf/sources-dist.json
@@ -154,6 +154,10 @@
     "meta": "https://raw.githubusercontent.com/ioBroker/ioBroker.vis/master/io-package.json",
     "icon": "https://raw.githubusercontent.com/ioBroker/ioBroker.vis/master/admin/vis.png"
   },
+  "vis-metro": {
+    "meta": "https://raw.githubusercontent.com/ioBroker/ioBroker.vis-metro/master/io-package.json",
+    "icon": "https://raw.githubusercontent.com/ioBroker/ioBroker.vis-metro/master/admin/metro.png"
+  },
   "web": {
     "meta": "https://raw.githubusercontent.com/ioBroker/ioBroker.web/master/io-package.json",
     "icon": "https://raw.githubusercontent.com/ioBroker/ioBroker.web/master/admin/web.png"
diff --git a/lib/setup.js b/lib/setup.js
index 96ef53a2ee..8564fbf688 100644
--- a/lib/setup.js
+++ b/lib/setup.js
@@ -2660,7 +2660,7 @@ function createInstance(adapter, options, callback) {
                     var _id = 'system.adapter.' + adapter + '.' + instance;
 
                     var objs;
-                    if (!instanceObj.common.onlyWWW) {
+                    if (!instanceObj.common.onlyWWW && instanceObj.common.mode != 'once') {
                         objs = [
                             {
                                 _id:    _id + '.alive',