diff --git a/nodes/core/logic/19-batch.js b/nodes/core/logic/19-batch.js
index 37f20d2aa..495862af8 100644
--- a/nodes/core/logic/19-batch.js
+++ b/nodes/core/logic/19-batch.js
@@ -116,7 +116,7 @@ module.exports = function(RED) {
         for (var topic of topics) {
             remove_topic(pending, topic);
         }
-        send_msgs(node, msgs, false);
+        send_msgs(node, msgs, true);
         node.pending_count -= msgs.length;
     }
 
diff --git a/test/nodes/core/logic/19-batch_spec.js b/test/nodes/core/logic/19-batch_spec.js
index f08abaef4..5593c5c97 100644
--- a/test/nodes/core/logic/19-batch_spec.js
+++ b/test/nodes/core/logic/19-batch_spec.js
@@ -54,8 +54,13 @@ describe('BATCH node', function() {
         var ix0 = 0; // seq no
         var ix1 = 0; // loc. in seq
         var seq = undefined;
+        var msgs = [];
         n2.on("input", function(msg) {
             try {
+                for (var i = 0; i < msgs.length; i++) {
+                    msg.should.not.equal(msgs[i]);
+                }
+                msgs.push(msg);
                 if (seq === undefined) {
                     seq = results[ix0];
                 }
@@ -306,6 +311,19 @@ describe('BATCH node', function() {
             check_concat(flow, results, inputs, done);
         });
 
+        it('should concat same seq.', function(done) {
+            var flow = [{id:"n1", type:"batch", name: "BatchNode", mode: "concat", count: 0, overlap: 0, interval: 1, allowEmptySequence: false, topics: [{topic: "TA"}, {topic: "TA"}], wires:[["n2"]]},
+                        {id:"n2", type:"helper"}];
+            var results = [
+                [9, 8, 9, 8]
+            ];
+            var inputs = [
+                ["TA", 9, 0, 2],
+                ["TA", 8, 1, 2]
+            ];
+            check_concat(flow, results, inputs, done);
+        });
+
         it('should handle too many pending messages', function(done) {
             var flow = [{id:"n1", type:"batch", name: "BatchNode", mode: "concat", count: 0, overlap: 0, interval: 1, allowEmptySequence: false, topics: [{topic: "TA"}, {topic: "TB"}], wires:[["n2"]]},
                         {id:"n2", type:"helper"}];