diff --git a/LittlePaimon/utils/image.py b/LittlePaimon/utils/image.py
index abb3b31..ce05776 100644
--- a/LittlePaimon/utils/image.py
+++ b/LittlePaimon/utils/image.py
@@ -417,7 +417,8 @@ class PMImage:
         """
         将图片转换为圆形
         """
-        # self.convert('RGBA')
+        if self.image.mode != 'RGBA':
+            self.image = self.convert('RGBA')
         w, h = self.size
         r2 = min(w, h)
         if w != h: