diff --git a/build/phar/patches/composer_autoloader.patch b/build/phar/patches/composer_autoloader.patch
deleted file mode 100644
index e69bb230b..000000000
--- a/build/phar/patches/composer_autoloader.patch
+++ /dev/null
@@ -1,12 +0,0 @@
---- a/vendor/composer/ClassLoader.php
-+++ b/vendor/composer/ClassLoader.php
-@@ -426,6 +426,9 @@ class ClassLoader
-         }
- 
-         // PSR-0 include paths.
-+        if (!in_array('phar', \stream_get_wrappers(), true)) {
-+            \stream_wrapper_restore('phar');
-+        }
-         if ($this->useIncludePath && $file = stream_resolve_include_path($logicalPathPsr0)) {
-             return $file;
-         }
diff --git a/src/N98/MagerunBootstrap.php b/src/N98/MagerunBootstrap.php
index a0b08856d..557291db5 100644
--- a/src/N98/MagerunBootstrap.php
+++ b/src/N98/MagerunBootstrap.php
@@ -28,6 +28,14 @@ public static function createApplication(ClassLoader $loader = null)
             $loader = self::getLoader();
         }
 
+        // @lnk https://github.com/humbug/php-scoper/issues/298 
+        $GLOBALS['__composer_autoload_files'] = [
+            /* vendor/guzzlehttp/psr7/src/functions_include.php */
+            'a0edc8309cc5e1d60e3047b5df6b7052' => false,
+            /* vendor/guzzlehttp/guzzle/src/functions_include.php */
+            '37a3dc5111fe8f707ab4c132ef1dbc62' => false,
+        ];
+
         $application = new Magento\Application($loader);
 
         return $application;