diff --git a/src/app/code/community/Zendesk/Zendesk/Model/Api/Tickets.php b/src/app/code/community/Zendesk/Zendesk/Model/Api/Tickets.php
index 897a9651..7a546ba5 100644
--- a/src/app/code/community/Zendesk/Zendesk/Model/Api/Tickets.php
+++ b/src/app/code/community/Zendesk/Zendesk/Model/Api/Tickets.php
@@ -82,7 +82,8 @@ public function forOrder($orderIncrementId)
             )
         );
 
-        if(count($response['results'])) {
+        // Check if $response['results'] is set and is an array before calling count()
+        if (isset($response['results']) && is_array($response['results']) && count($response['results'])) {
             return $response['results'];
         } else {
             return false;