diff --git a/CRM/TwingleCampaign/Utils/APIWrapper.php b/CRM/TwingleCampaign/Utils/APIWrapper.php
index 5afe426..932a88d 100644
--- a/CRM/TwingleCampaign/Utils/APIWrapper.php
+++ b/CRM/TwingleCampaign/Utils/APIWrapper.php
@@ -129,11 +129,7 @@ class CRM_TwingleCampaign_Utils_APIWrapper {
         }
       }
     }
-    elseif (array_key_exists(
-        'event',
-        $apiRequest['params']['custom_fields']) &&
-      !empty($apiRequest['params']['custom_fields']['event'])
-    ) {
+    elseif (!empty($apiRequest['params']['custom_fields']['event'])) {
       try {
         $targetCampaign = civicrm_api3(
           'TwingleEvent',