diff --git a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
index 1437db56d0..d88d23c21a 100644
--- a/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
+++ b/src/Symfony/Component/DependencyInjection/Dumper/PhpDumper.php
@@ -492,7 +492,7 @@ EOF;
                 $proxyCode = substr(Kernel::stripComments($proxyCode), 5);
             }
 
-            $proxyClasses[sprintf('%s.php', explode(' ', $proxyCode, 3)[1])] = $proxyCode;
+            $proxyClasses[sprintf('%s.php', explode(' ', $this->inlineRequires ? substr($proxyCode, \strlen($code)) : $proxyCode, 3)[1])] = $proxyCode;
         }
 
         return $proxyClasses;