diff --git a/test/parallel/test-debug-port-from-cmdline.js b/test/parallel/test-debug-port-from-cmdline.js
index 527d72ee74a75f..cd92764df29c8e 100644
--- a/test/parallel/test-debug-port-from-cmdline.js
+++ b/test/parallel/test-debug-port-from-cmdline.js
@@ -42,7 +42,7 @@ function assertOutputLines() {
     'Debugger listening on (\\[::\\]|0\\.0\\.0\\.0):' + debugPort,
   ];
 
-  assert.equal(outputLines.length, expectedLines.length);
+  assert.strictEqual(outputLines.length, expectedLines.length);
   for (var i = 0; i < expectedLines.length; i++)
     assert(RegExp(expectedLines[i]).test(outputLines[i]));
 }