diff --git a/distro-build/ubuntu-oldlts.sh b/distro-build/ubuntu-oldlts.sh
index 590ac73de..7a6667f08 100644
--- a/distro-build/ubuntu-oldlts.sh
+++ b/distro-build/ubuntu-oldlts.sh
@@ -23,7 +23,7 @@ bootstrap_distribution() {
 }
 
 write_plugin() {
-	cat <<- EOF > "${PLUGIN_DIR}/ubuntu.sh"
+	cat <<- EOF > "${PLUGIN_DIR}/ubuntu-oldlts.sh"
 	# This is a default distribution plug-in.
 	# Do not modify this file as your changes will be overwritten on next update.
 	# If you want customize installation, please make a copy.