diff --git a/bug.py b/bug.py
index 4c7662d..4bfd3aa 100644
--- a/bug.py
+++ b/bug.py
@@ -2,7 +2,7 @@
 import turtle
 
 pen= turtle.Pen()
-size=textinput("提示","你想要多大的魔法阵呀？")
+size=screen.textinput("提示","你想要多大的魔法阵呀？")
 pen.circle(size)
 pen.circle(size,360,3)
 pen.circle(size,60)