diff --git a/README.md b/README.md
index f5cc022..d8e6b2f 100644
--- a/README.md
+++ b/README.md
@@ -1,9 +1,7 @@
 # Debian Bootstrap
 
-Simple bootstrap script for Debian VMs.
-
-## Usage
+Run it with:
 
 ```bash
-curl -s https://github.com/jinjin/debian-bootstrap/raw/main/bootstrap.sh | bash
+curl -fsSL https://git.jennjin.com/jinjin/my-bootstrap/raw/branch/master/bootstrap.sh | bash
 ```
diff --git a/bootstrap.sh b/bootstrap.sh
index 82f7886..8306b9b 100644
--- a/bootstrap.sh
+++ b/bootstrap.sh
@@ -22,7 +22,7 @@ fi
 echo "*** START ***"
 
 echo "## cleaning sources.list"
-sed -i '1,2d' /etc/apt/sources.list
+sed -i '/^deb cdrom:/d' /etc/apt/sources.list
 
 DEBIAN_FRONTEND=noninteractive
 export DEBIAN_FRONTEND