diff --git a/libs/community/langchain_community/document_loaders/base_o365.py b/libs/community/langchain_community/document_loaders/base_o365.py
index 86a17d5e0ec..b0d44e77240 100644
--- a/libs/community/langchain_community/document_loaders/base_o365.py
+++ b/libs/community/langchain_community/document_loaders/base_o365.py
@@ -38,7 +38,7 @@ class _O365Settings(BaseSettings):
     client_secret: SecretStr = Field(..., alias="O365_CLIENT_SECRET")
 
     model_config = SettingsConfigDict(
-        case_sensitive=False, env_file=".env", env_prefix=""
+        case_sensitive=False, env_file=".env", env_prefix="", extra="ignore"
     )