diff --git a/test/nodes/core/core/75-exec_spec.js b/test/nodes/core/core/75-exec_spec.js
index 256cff1b4..9d44d96d7 100644
--- a/test/nodes/core/core/75-exec_spec.js
+++ b/test/nodes/core/core/75-exec_spec.js
@@ -259,7 +259,8 @@ describe('exec node', function() {
                 n4.on("input", function(msg) {
                     try {
                         msg.should.have.property("payload");
-                        should.not.be.null(msg.payload);
+
+                        should.exist(msg.payload);
                         msg.payload.should.be.a.Number();
                         msg.payload.should.equal(0);
                         done();