diff --git a/src/Eccube/Kernel.php b/src/Eccube/Kernel.php
index 81a3164ced3..01e68d935f0 100644
--- a/src/Eccube/Kernel.php
+++ b/src/Eccube/Kernel.php
@@ -80,6 +80,9 @@ public function registerBundles()
      */
     public function boot()
     {
+        // Symfonyがsrc/Eccube/Entity以下を読み込む前にapp/proxy/entity以下をロードする
+        $this->loadEntityProxies();
+
         parent::boot();
 
         // DateTime/DateTimeTzのタイムゾーンを設定.
@@ -246,4 +249,11 @@ protected function addEntityExtensionPass(ContainerBuilder $container)
             }
         }
     }
+
+    protected function loadEntityProxies()
+    {
+        foreach (glob(__DIR__.'/../../app/proxy/entity/*.php') as $file) {
+            require_once $file;
+        }
+    }
 }