diff --git a/langfuse/langchain/CallbackHandler.py b/langfuse/langchain/CallbackHandler.py
index 8d2c8db90..2c06a6ddf 100644
--- a/langfuse/langchain/CallbackHandler.py
+++ b/langfuse/langchain/CallbackHandler.py
@@ -369,6 +369,7 @@ def on_chain_start(
                     session_id=parsed_trace_attributes.get("session_id", None),
                     tags=parsed_trace_attributes.get("tags", None),
                     metadata=parsed_trace_attributes.get("metadata", None),
+                    trace_name=span_name,
                 )
 
                 self._propagation_context_manager.__enter__()