diff --git a/sapi/phpdbg/tests/run_001.phpt b/sapi/phpdbg/tests/run_001.phpt
index 30aab1f17ad27..4b25b924c2170 100644
--- a/sapi/phpdbg/tests/run_001.phpt
+++ b/sapi/phpdbg/tests/run_001.phpt
@@ -52,5 +52,7 @@ prompt>
 1 2 3
 --FILE--
 <?php
-
+if (is_null($argc) || is_null($argv)) {
+  die("Error. No parameters inserted!");
+}
 var_dump($argc, $argv);