diff --git a/api/core/workflow/nodes/template_transform/template_transform_node.py b/api/core/workflow/nodes/template_transform/template_transform_node.py
index 857a693c5b..b85271ddc6 100644
--- a/api/core/workflow/nodes/template_transform/template_transform_node.py
+++ b/api/core/workflow/nodes/template_transform/template_transform_node.py
@@ -56,7 +56,7 @@ class TemplateTransformNode(BaseNode[TemplateTransformNodeData]):
 
     @classmethod
     def _extract_variable_selector_to_variable_mapping(
-        cls, graph_config: Mapping[str, Any], node_id: str, node_data: TemplateTransformNodeData
+        cls, *, graph_config: Mapping[str, Any], node_id: str, node_data: TemplateTransformNodeData
     ) -> Mapping[str, Sequence[str]]:
         """
         Extract variable selector to variable mapping