diff --git a/src/Illuminate/Collections/Traits/EnumeratesValues.php b/src/Illuminate/Collections/Traits/EnumeratesValues.php
index bf636c7ca790..71c5e600f2c2 100644
--- a/src/Illuminate/Collections/Traits/EnumeratesValues.php
+++ b/src/Illuminate/Collections/Traits/EnumeratesValues.php
@@ -1002,7 +1002,7 @@ protected function getArrayableItems($items)
      */
     protected function operatorForWhere($key, $operator = null, $value = null)
     {
-        if (is_callable($key)) {
+        if ($this->useAsCallable($key)) {
             return $key;
         }