diff --git a/libs/langchain/langchain/chains/retrieval_qa/base.py b/libs/langchain/langchain/chains/retrieval_qa/base.py
index a7558b87375..185900ca32c 100644
--- a/libs/langchain/langchain/chains/retrieval_qa/base.py
+++ b/libs/langchain/langchain/chains/retrieval_qa/base.py
@@ -68,11 +68,14 @@ class BaseRetrievalQA(Chain):
         llm: BaseLanguageModel,
         prompt: Optional[PromptTemplate] = None,
         callbacks: Callbacks = None,
+        llm_chain_kwargs: Optional[dict] = None,
         **kwargs: Any,
     ) -> BaseRetrievalQA:
         """Initialize from LLM."""
         _prompt = prompt or PROMPT_SELECTOR.get_prompt(llm)
-        llm_chain = LLMChain(llm=llm, prompt=_prompt, callbacks=callbacks)
+        llm_chain = LLMChain(
+            llm=llm, prompt=_prompt, callbacks=callbacks, **(llm_chain_kwargs or {})
+        )
         document_prompt = PromptTemplate(
             input_variables=["page_content"], template="Context:\n{page_content}"
         )