diff --git a/sources/wordpress/sf2/sf2plugin.php b/sources/wordpress/sf2/sf2plugin.php
index e7383a3..cd6286f 100755
--- a/sources/wordpress/sf2/sf2plugin.php
+++ b/sources/wordpress/sf2/sf2plugin.php
@@ -95,7 +95,16 @@ private function loadSf2()
             }
         } else {
             $this->kernel = $kernel;
-            $this->container = $kernel->getContainer();
+            
+            if ($this->kernel instanceof AppCache) {
+                $this->kernel = $this->kernel->getKernel();
+            }
+
+            if (!is_subclass_of($this->kernel, 'Symfony\Component\HttpKernel\KernelInterface')) {
+                throw new RuntimeException("Le kernel doit implémenter Symfony\Component\HttpKernel\KernelInterface");
+            }
+
+            $this->container = $this->kernel->getContainer();
         }
         $wp_loader = $this->container->get('wordpress.loader');
         $wp_loader->load();