diff --git a/libs/community/langchain_community/utilities/google_scholar.py b/libs/community/langchain_community/utilities/google_scholar.py
index ffc94848a61a5..6dd966921a6a8 100644
--- a/libs/community/langchain_community/utilities/google_scholar.py
+++ b/libs/community/langchain_community/utilities/google_scholar.py
@@ -45,6 +45,7 @@ class GoogleScholarAPIWrapper(BaseModel):
     hl: str = "en"
     lr: str = "lang_en"
     serp_api_key: Optional[str] = None
+    google_scholar_engine: Any = None
 
     model_config = ConfigDict(
         extra="forbid",
@@ -55,7 +56,7 @@ class GoogleScholarAPIWrapper(BaseModel):
     def validate_environment(cls, values: Dict) -> Any:
         """Validate that api key and python package exists in environment."""
         serp_api_key = get_from_dict_or_env(values, "serp_api_key", "SERP_API_KEY")
-        values["SERP_API_KEY"] = serp_api_key
+        values["serp_api_key"] = serp_api_key
 
         try:
             from serpapi import GoogleScholarSearch