diff --git a/admin-authcode-gui.ps1 b/admin-authcode-gui.ps1
index 3d2b4c0..e1eb40c 100644
--- a/admin-authcode-gui.ps1
+++ b/admin-authcode-gui.ps1
@@ -60,7 +60,7 @@ $titleLabel.ForeColor = [System.Drawing.Color]::White
 $header.Controls.Add($titleLabel)
 
 # ─── 输入区 ───────────────────────────────────────────
-$y = 72
+[int]$y = 72
 
 # 用户名
 $lblUser = New-Object System.Windows.Forms.Label