diff --git a/src/QueryBuilder/QueryBuilderFlex.php b/src/QueryBuilder/QueryBuilderFlex.php
index ae4b8a70..0bdb0641 100644
--- a/src/QueryBuilder/QueryBuilderFlex.php
+++ b/src/QueryBuilder/QueryBuilderFlex.php
@@ -80,7 +80,6 @@ public function __construct(\Pixie\Connection $connection = null)
         $this->setFetchMode(PDO::FETCH_ASSOC);
     }
 
-
     /**
      * {@inheritdoc}
      */
@@ -91,6 +90,18 @@ public function limit($limit)
         return parent::limit($limit);
     }
 
+    /**
+     * {@inheritdoc}
+     */
+    protected function whereHandler($key, $operator = null, $value = null, $joiner = 'AND')
+    {
+        if ($value instanceof BaseModel) {
+            $value = $value->getId();
+        }
+
+        return parent::whereHandler($key, $operator, $value, $joiner);
+    }
+
     //
     // QueryBuilderFlex unique functions
     //