diff --git a/ubuntu-source-tsinghua.sh b/ubuntu-source-tsinghua.sh
index e029bd4..3ad86bd 100644
--- a/ubuntu-source-tsinghua.sh
+++ b/ubuntu-source-tsinghua.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
 rm -rf /etc/apt/sources.list
-mv /usr/local/conf/ubuntu_2204-sources-tsinghua.list /etc/apt/sources.list
+cp -R /usr/local/conf/ubuntu_2204-sources-tsinghua.list /etc/apt/sources.list
 apt update && apt upgrade -y
\ No newline at end of file