diff --git a/AptSources/gxde-kernel-manager.list b/AptSources/gxde-kernel-manager.list
index 2686994..6f2163d 100644
--- a/AptSources/gxde-kernel-manager.list
+++ b/AptSources/gxde-kernel-manager.list
@@ -1,2 +1,4 @@
 deb [trusted=true] https://master.dl.sourceforge.net/project/gxde-kernel-manager/kernel/ ./
 deb [trusted=true] https://kernel.gxde.gfdgdxi.top/ ./
+# CN Mirror
+deb [trusted=true] http://gfdgdxi.v5.idcfengye.com/gxde-linux-kernel/ ./
diff --git a/mainwindow.cpp b/mainwindow.cpp
index d394fc7..49d782d 100644
--- a/mainwindow.cpp
+++ b/mainwindow.cpp
@@ -73,7 +73,7 @@ void MainWindow::on_m_installButton_clicked()
 {
     QModelIndex list = ui->m_kernelShow->selectionModel()->currentIndex();
     int row = list.row();
-    if(row <= 0) {
+    if(row < 0) {
         // 未选中任何内容
         QMessageBox::critical(this, tr("Error"), tr("Nothing to choose"));
         return;
@@ -120,7 +120,7 @@ void MainWindow::on_m_removeButton_clicked()
 {
     QModelIndex list = ui->m_kernelShow->selectionModel()->currentIndex();
     int row = list.row();
-    if(row <= 0) {
+    if(row < 0) {
         // 未选中任何内容
         QMessageBox::critical(this, tr("Error"), tr("Nothing to choose"));
         return;