diff --git a/packages/node_modules/@node-red/runtime/lib/nodes/flows/index.js b/packages/node_modules/@node-red/runtime/lib/nodes/flows/index.js
index 4cce74e83..7963ddfc4 100644
--- a/packages/node_modules/@node-red/runtime/lib/nodes/flows/index.js
+++ b/packages/node_modules/@node-red/runtime/lib/nodes/flows/index.js
@@ -388,14 +388,14 @@ function stop(type,diff,muteLog) {
         if (activeFlows.hasOwnProperty(id)) {
             var flowStateChanged = diff && (diff.added.indexOf(id) !== -1 || diff.removed.indexOf(id) !== -1);
             log.debug("red/nodes/flows.stop : stopping flow : "+id);
-            promises = promises.concat(activeFlows[id].stop(flowStateChanged?null:stopList,removedList));
+            promises.push(activeFlows[id].stop(flowStateChanged?null:stopList,removedList));
             if (type === "full" || flowStateChanged || diff.removed.indexOf(id)!==-1) {
                 delete activeFlows[id];
             }
         }
     }
 
-    return Promise.resolve(promises).then(function() {
+    return Promise.all(promises).then(function() {
         for (id in activeNodesToFlow) {
             if (activeNodesToFlow.hasOwnProperty(id)) {
                 if (!activeFlows[activeNodesToFlow[id]]) {