diff --git a/src/backend/langflow/api/v1/chat.py b/src/backend/langflow/api/v1/chat.py
index edd4d4724..9f0259771 100644
--- a/src/backend/langflow/api/v1/chat.py
+++ b/src/backend/langflow/api/v1/chat.py
@@ -162,7 +162,6 @@ async def build_vertex(
         inactivated_vertices = None
         inactivated_vertices = list(graph.inactivated_vertices)
         graph.reset_inactivated_vertices()
-        activated_layers = graph.activated_vertices
         graph.reset_activated_vertices()
         chat_service.set_cache(flow_id, graph)