diff --git a/src/Util/PHP/eval-stdin.php b/src/Util/PHP/eval-stdin.php
index 07ff4469134..51830820d07 100644
--- a/src/Util/PHP/eval-stdin.php
+++ b/src/Util/PHP/eval-stdin.php
@@ -8,7 +8,7 @@
  * file that was distributed with this source code.
  */
 if (\PHP_SAPI !== 'cli' && \PHP_SAPI !== 'phpdbg') {
-    exit;
+    exit(1);
 }
 
 eval('?>' . \file_get_contents('php://stdin'));