diff --git a/src/bonsai/bonsai/tool/cost.py b/src/bonsai/bonsai/tool/cost.py
index ffc6943cae..8d9945a4ad 100644
--- a/src/bonsai/bonsai/tool/cost.py
+++ b/src/bonsai/bonsai/tool/cost.py
@@ -858,4 +858,8 @@ class Cost(bonsai.core.tool.Cost):
         if not bpy.context.scene.WebProperties.is_connected:
             bpy.ops.bim.connect_websocket_server(page="costing")
         cost_schedule_data = cls.create_cost_schedule_json(cost_chedule)
-        tool.Web.send_webui_data(data={"cost_items": cost_schedule_data, "cost_schedule_id": cost_chedule.id()}, data_key="cost_items", event="cost_items")
+        tool.Web.send_webui_data(
+            data={"cost_items": cost_schedule_data, "cost_schedule_id": cost_chedule.id()},
+            data_key="cost_items",
+            event="cost_items",
+        )