diff --git a/phpstan.neon b/phpstan.neon
index 25b6cecf..66ea6614 100644
--- a/phpstan.neon
+++ b/phpstan.neon
@@ -11,3 +11,4 @@ parameters:
   dynamicConstantNames:
     - SWOOLE_VERSION
     - ZM_TEST_LOG_DEBUG
+    - _PHAR_STUB_ID
diff --git a/src/ZM/script_phar_stub.php b/src/ZM/script_phar_stub.php
index d50e6a4f..3650b878 100644
--- a/src/ZM/script_phar_stub.php
+++ b/src/ZM/script_phar_stub.php
@@ -2,6 +2,8 @@
 
 declare(strict_types=1);
 
+const _PHAR_STUB_ID = '__generated_id__';
+
 function loader__generated_id__()
 {
     $obj = json_decode(file_get_contents(__DIR__ . '/zmplugin.json'), true);
@@ -12,4 +14,8 @@ function loader__generated_id__()
         require_once Phar::running() . '/' . $v;
     }
 }
+if ('__generate' . 'd_id__' === _PHAR_STUB_ID) {
+    echo 'Cannot execute this file directly!' . PHP_EOL;
+    exit(1);
+}
 return json_decode(file_get_contents(__DIR__ . '/zmplugin.json'), true) ?? ['zm_module' => false];