diff --git a/libs/community/langchain_community/chat_models/openai.py b/libs/community/langchain_community/chat_models/openai.py
index a8d197d3be..54326d0acc 100644
--- a/libs/community/langchain_community/chat_models/openai.py
+++ b/libs/community/langchain_community/chat_models/openai.py
@@ -403,6 +403,8 @@ class ChatOpenAI(BaseChatModel):
             if len(chunk["choices"]) == 0:
                 continue
             choice = chunk["choices"][0]
+            if choice["delta"] is None:
+                continue
             chunk = _convert_delta_to_message_chunk(
                 choice["delta"], default_chunk_class
             )
@@ -495,6 +497,8 @@ class ChatOpenAI(BaseChatModel):
             if len(chunk["choices"]) == 0:
                 continue
             choice = chunk["choices"][0]
+            if choice["delta"] is None:
+                continue
             chunk = _convert_delta_to_message_chunk(
                 choice["delta"], default_chunk_class
             )