diff --git a/core/lib/Thelia/Core/HttpFoundation/Session/Session.php b/core/lib/Thelia/Core/HttpFoundation/Session/Session.php
index 008f0fbfb..dbfe0d204 100644
--- a/core/lib/Thelia/Core/HttpFoundation/Session/Session.php
+++ b/core/lib/Thelia/Core/HttpFoundation/Session/Session.php
@@ -270,6 +270,6 @@ class Session extends BaseSession
      */
     public function getConsumedCoupons()
     {
-        return $this->get('thelia.consumed_coupons');
+        return $this->get('thelia.consumed_coupons', array());
     }
 }