diff --git a/common/utils.py b/common/utils.py
index 14de144..38a1440 100644
--- a/common/utils.py
+++ b/common/utils.py
@@ -192,7 +192,7 @@ def check_path(path, name, fmt):
     else:
         path = default_path
     path = Path(path)
-    if not path.suffix:  # 输入是目录的情况
+    if path.is_dir():  # 输入是目录的情况
         path = path.joinpath(filename)
     parent_dir = path.parent
     if not parent_dir.exists():