diff --git a/packages/node_modules/@node-red/nodes/core/core/75-exec.js b/packages/node_modules/@node-red/nodes/core/core/75-exec.js
index 09e54decc..a5132230e 100644
--- a/packages/node_modules/@node-red/nodes/core/core/75-exec.js
+++ b/packages/node_modules/@node-red/nodes/core/core/75-exec.js
@@ -38,7 +38,7 @@ module.exports = function(RED) {
             //node.error("Exec node timeout");
         }
 
-        this.on("input", function(msg) {
+        this.on("input", function(msg, nodeSend, nodeDone) {
             if (msg.hasOwnProperty("kill")) {
                 if (typeof msg.kill !== "string" || msg.kill.length === 0 || !msg.kill.toUpperCase().startsWith("SIG") ) { msg.kill = "SIGTERM"; }
                 if (msg.hasOwnProperty("pid")) {
@@ -53,6 +53,7 @@ module.exports = function(RED) {
                         node.status({fill:"red",shape:"dot",text:"killed"});
                     }
                 }
+                nodeDone();
             }
             else {
                 var child;
@@ -85,14 +86,14 @@ module.exports = function(RED) {
                             // console.log('[exec] stdout: ' + data,child.pid);
                             if (isUtf8(data)) { msg.payload = data.toString(); }
                             else { msg.payload = data; }
-                            node.send([RED.util.cloneMessage(msg),null,null]);
+                            nodeSend([RED.util.cloneMessage(msg),null,null]);
                         }
                     });
                     child.stderr.on('data', function (data) {
                         if (node.activeProcesses.hasOwnProperty(child.pid) && node.activeProcesses[child.pid] !== null) {
                             if (isUtf8(data)) { msg.payload = data.toString(); }
                             else { msg.payload = Buffer.from(data); }
-                            node.send([null,RED.util.cloneMessage(msg),null]);
+                            nodeSend([null,RED.util.cloneMessage(msg),null]);
                         }
                     });
                     child.on('close', function (code,signal) {
@@ -108,8 +109,9 @@ module.exports = function(RED) {
                             if (code === null) { node.status({fill:"red",shape:"dot",text:"killed"}); }
                             else if (code < 0) { node.status({fill:"red",shape:"dot",text:"rc:"+code}); }
                             else { node.status({fill:"yellow",shape:"dot",text:"rc:"+code}); }
-                            node.send([null,null,RED.util.cloneMessage(msg)]);
+                            nodeSend([null,null,RED.util.cloneMessage(msg)]);
                         }
+                        nodeDone();
                     });
                     child.on('error', function (code) {
                         if (child.tout) { clearTimeout(child.tout); }
@@ -154,9 +156,10 @@ module.exports = function(RED) {
                             msg.rc = msg3.payload;
                             if (msg2) { msg2.rc = msg3.payload; }
                         }
-                        node.send([msg,msg2,msg3]);
+                        nodeSend([msg,msg2,msg3]);
                         if (child.tout) { clearTimeout(child.tout); }
                         delete node.activeProcesses[child.pid];
+                        nodeDone();
                     });
                     node.status({fill:"blue",shape:"dot",text:"pid:"+child.pid});
                     child.on('error',function() {});