diff --git a/backend/apps/openai/main.py b/backend/apps/openai/main.py
index c97fd99ce..65ed25f1c 100644
--- a/backend/apps/openai/main.py
+++ b/backend/apps/openai/main.py
@@ -119,7 +119,7 @@ async def speech(request: Request, user=Depends(get_verified_user)):
         headers = {}
         headers["Authorization"] = f"Bearer {app.state.config.OPENAI_API_KEYS[idx]}"
         headers["Content-Type"] = "application/json"
-        if "openrouter.ai" in app.state.OPENAI_API_BASE_URLS[idx]:
+        if "openrouter.ai" in app.state.config.OPENAI_API_BASE_URLS[idx]:
             headers["HTTP-Referer"] = "https://openwebui.com/"
             headers["X-Title"] = "Open WebUI"
         r = None
diff --git a/backend/main.py b/backend/main.py
index 3fc83949f..5b37adb3a 100644
--- a/backend/main.py
+++ b/backend/main.py
@@ -147,7 +147,7 @@ class RAGMiddleware(BaseHTTPMiddleware):
                     messages=data["messages"],
                     template=rag_app.state.config.RAG_TEMPLATE,
                     embedding_function=rag_app.state.EMBEDDING_FUNCTION,
-                    k=rag_app.state.TOP_K,
+                    k=rag_app.state.config.TOP_K,
                     reranking_function=rag_app.state.sentence_transformer_rf,
                     r=rag_app.state.config.RELEVANCE_THRESHOLD,
                     hybrid_search=rag_app.state.config.ENABLE_RAG_HYBRID_SEARCH,