diff --git a/lightrag/api/lightrag_server.py b/lightrag/api/lightrag_server.py
index fe52f592..a442074d 100644
--- a/lightrag/api/lightrag_server.py
+++ b/lightrag/api/lightrag_server.py
@@ -101,6 +101,7 @@ def estimate_tokens(text: str) -> int:
 
     return int(tokens)
 
+
 def get_default_host(binding_type: str) -> str:
     default_hosts = {
         "ollama": os.getenv("LLM_BINDING_HOST", "http://localhost:11434"),