diff --git a/Plain Craft Launcher 2/Pages/PageVersion/PageVersionSetup.xaml.vb b/Plain Craft Launcher 2/Pages/PageVersion/PageVersionSetup.xaml.vb
index a11595b..6b07ace 100644
--- a/Plain Craft Launcher 2/Pages/PageVersion/PageVersionSetup.xaml.vb	
+++ b/Plain Craft Launcher 2/Pages/PageVersion/PageVersionSetup.xaml.vb	
@@ -399,6 +399,9 @@ PreFin:
         TextServerAuthName.Text = "LittleSkin 登录"
     End Sub
 
+    Private Shared Sub TextServerEnter_Change(sender As MyTextBox, e As Object) Handles TextServerEnter.LostFocus
+        sender.Text = sender.Text.Replace("：", ":")
+    End Sub
 #End Region
 
 #Region "Java 选择"