diff --git a/langchain/callbacks/file.py b/langchain/callbacks/file.py
index 7c13295364..1c359e7a1d 100644
--- a/langchain/callbacks/file.py
+++ b/langchain/callbacks/file.py
@@ -24,7 +24,7 @@ class FileCallbackHandler(BaseCallbackHandler):
         self, serialized: Dict[str, Any], inputs: Dict[str, Any], **kwargs: Any
     ) -> None:
         """Print out that we are entering a chain."""
-        class_name = serialized["name"]
+        class_name = serialized.get("name", serialized.get("id", ["<unknown>"])[-1])
         print_text(
             f"\n\n\033[1m> Entering new {class_name} chain...\033[0m",
             end="\n",