diff --git a/source/tool.py b/source/tool.py
index d21617a..29014a6 100755
--- a/source/tool.py
+++ b/source/tool.py
@@ -197,7 +197,7 @@ def load_image_frames(directory, image_name, colorkey, accept):
     return frame_list
 
 # colorkeys 是设置图像中的某个颜色值为透明,这里用来消除白边
-def load_all_gfx(directory, colorkey=c.WHITE, accept=(".png", ".jpg", ".bmp", ".gif", "webp")):
+def load_all_gfx(directory, colorkey=c.WHITE, accept=(".png", ".jpg", ".bmp", ".gif", ".webp")):
     graphics = {}
     for name1 in os.listdir(directory):
         # subfolders under the folder resources\graphics