diff --git a/libimageviewer/widgets/renamedialog.cpp b/libimageviewer/widgets/renamedialog.cpp
index 0dead2f0..6f1e9c64 100644
--- a/libimageviewer/widgets/renamedialog.cpp
+++ b/libimageviewer/widgets/renamedialog.cpp
@@ -37,7 +37,7 @@ RenameDialog::RenameDialog(const QString &filename, QWidget *parent)
     m_edtlayout = new QHBoxLayout();
     m_lineedt = new DLineEdit(widet);
     QFrame *line = new QFrame(widet);
-    line->setLineWidth(2);
+    line->setLineWidth(1);
     line->setFixedHeight(25);  // 垂直分割线短于按钮高度
     QLbtoDLabel *labtitle = new QLbtoDLabel();
     okbtn = new DSuggestButton(tr("Confirm"), widet);