diff --git a/main.py b/main.py
index e4d3fcf..cab8601 100644
--- a/main.py
+++ b/main.py
@@ -173,13 +173,13 @@ class WebServer:
 
 async def main():
     s = WebServer()
-    if not s.directory:
+    if not config.directory:
         print("directory not set!")
         exit(1)
-    if not s.preset_file:
+    if not config.preset_file:
         print("preset file not set!")
         exit(1)
-    if not os.path.isfile(s.preset_file):
+    if not os.path.isfile(config.preset_file):
         print("invalid preset file")
         exit(1)
     await s.start()