diff --git a/libs/langchain/langchain/callbacks/__init__.py b/libs/langchain/langchain/callbacks/__init__.py
index 3f66a1a0dc032..49e1a9beebf06 100644
--- a/libs/langchain/langchain/callbacks/__init__.py
+++ b/libs/langchain/langchain/callbacks/__init__.py
@@ -85,6 +85,7 @@
     "LLMThoughtLabeler": (
         "langchain_community.callbacks.streamlit.streamlit_callback_handler"
     ),
+    "PanelCallbackHandler": "langchain_community.callbacks.panel_callback",
     "StreamlitCallbackHandler": "langchain_community.callbacks.streamlit",
     "WandbCallbackHandler": "langchain_community.callbacks.wandb_callback",
     "WhyLabsCallbackHandler": "langchain_community.callbacks.whylabs_callback",