diff --git a/src/EloquentDataTable.php b/src/EloquentDataTable.php
index 8c3f9ce8..38c5adb1 100644
--- a/src/EloquentDataTable.php
+++ b/src/EloquentDataTable.php
@@ -214,7 +214,7 @@ protected function performJoin($table, $foreign, $other, $deletedAt = false, $ty
         }
 
         if ($deletedAt !== false) {
-            $this->getBaseQueryBuilder()->whereNull($deletedAt);
+            $this->getBaseQueryBuilder()->whereNull($table . '.' . $deletedAt);
         }
     }
 }