diff --git a/packages/node_modules/@node-red/nodes/core/sequence/17-split.js b/packages/node_modules/@node-red/nodes/core/sequence/17-split.js
index 4e71fe6c7..b2e11218a 100644
--- a/packages/node_modules/@node-red/nodes/core/sequence/17-split.js
+++ b/packages/node_modules/@node-red/nodes/core/sequence/17-split.js
@@ -478,7 +478,7 @@ module.exports = function(RED) {
         var completeSend = function(partId) {
             var group = inflight[partId];
             if (group.timeout) { clearTimeout(group.timeout); }
-            if ((node.accumulate !== true) || group.msg.hasOwnProperty("complete")) { delete inflight[partId]; }
+            if (node.mode === 'auto' || node.accumulate !== true || group.msg.hasOwnProperty("complete")) { delete inflight[partId]; }
             if (group.type === 'array' && group.arrayLen > 1) {
                 var newArray = [];
                 group.payload.forEach(function(n) {