diff --git a/libs/partners/openai/langchain_openai/chat_models/azure.py b/libs/partners/openai/langchain_openai/chat_models/azure.py
index ab494a2b7c4..d6e201bd493 100644
--- a/libs/partners/openai/langchain_openai/chat_models/azure.py
+++ b/libs/partners/openai/langchain_openai/chat_models/azure.py
@@ -201,7 +201,10 @@ class AzureChatOpenAI(ChatOpenAI):
     @property
     def _identifying_params(self) -> Dict[str, Any]:
         """Get the identifying parameters."""
-        return {**self._default_params}
+        return {
+            **{"azure_deployment": self.deployment_name},
+            **super()._identifying_params,
+        }
 
     @property
     def _llm_type(self) -> str: