diff --git a/src/google/adk/cli/cli_tools_click.py b/src/google/adk/cli/cli_tools_click.py
index 5d7611f217..91b4a07b5d 100644
--- a/src/google/adk/cli/cli_tools_click.py
+++ b/src/google/adk/cli/cli_tools_click.py
@@ -1291,6 +1291,7 @@ async def _lifespan(app: FastAPI):
       host=host,
       port=port,
       reload=reload,
+      log_level=log_level.lower(),
   )
 
   server = uvicorn.Server(config)
@@ -1367,6 +1368,7 @@ def cli_api_server(
       host=host,
       port=port,
       reload=reload,
+      log_level=log_level.lower(),
   )
   server = uvicorn.Server(config)
   server.run()