diff --git a/Helper/EmailMarketing.php b/Helper/EmailMarketing.php
index f14ed8c..47f6d86 100755
--- a/Helper/EmailMarketing.php
+++ b/Helper/EmailMarketing.php
@@ -538,7 +538,7 @@ public function getCustomerName(Quote $quote)
             if ($customer && $customer->getId()) {
                 $customerName = trim($customer->getFirstname() . ' ' . $customer->getLastname());
             } else {
-                $customerName = explode('@', $quote->getCustomerEmail())[0];
+                $customerName = explode('@', $quote->getCustomerEmail() ?: '')[0];
             }
         }