diff --git a/CRM/Civicase/APIHelpers/CustomValues.php b/CRM/Civicase/APIHelpers/CustomValues.php
index b745cdad5..8ebfaff17 100644
--- a/CRM/Civicase/APIHelpers/CustomValues.php
+++ b/CRM/Civicase/APIHelpers/CustomValues.php
@@ -163,7 +163,7 @@ public static function formatTreeResults(array $tree, array &$result, array $toR
         if (!empty($fieldInfo['customValue'])) {
           $field['value'] = CRM_Utils_Array::first($fieldInfo['customValue']);
           if (!$toReturn['custom_value'] || in_array('display', $toReturn['custom_value'])) {
-            $field['value']['display'] = CRM_Core_BAO_CustomField::displayValue($field['value']['data'], $fieldInfo);
+            $field['value']['display'] = CRM_Core_BAO_CustomField::displayValue($field['value']['data'], $fieldInfo['id']);
           }
           foreach (array_keys($field['value']) as $key) {
             if ($toReturn['custom_value'] && !in_array($key, $toReturn['custom_value'])) {