diff --git a/src/backend/langflow/utils/payload.py b/src/backend/langflow/utils/payload.py
index 9f3fad38e..380ec800c 100644
--- a/src/backend/langflow/utils/payload.py
+++ b/src/backend/langflow/utils/payload.py
@@ -77,7 +77,9 @@ def build_json(root, graph) -> Dict:
                 raise ValueError(f"No child with type {node_type} found")
             values = [build_json(child, graph) for child in children]
             value = (
-                list(values) if value["list"] else next(iter(values), None)  # type: ignore
+                list(values)
+                if value["list"]
+                else next(iter(values), None)  # type: ignore
             )
         final_dict[key] = value