diff --git a/scripts/install_dev.sh b/scripts/install_dev.sh
index 5eb2e07d7..97e16a742 100755
--- a/scripts/install_dev.sh
+++ b/scripts/install_dev.sh
@@ -236,7 +236,7 @@ if [ $OSNAME != "macos" ];then
 	if [ ! -d /www/server/mdserver-web ];then
 		echo "downloading ${HTTP_PREFIX}github.com/midoks/mdserver-web/archive/refs/heads/dev.tar.gz"
 		curl --insecure -sSLo /tmp/dev.tar.gz ${HTTP_PREFIX}github.com/midoks/mdserver-web/archive/refs/heads/dev.tar.gz
-		cd /tmp && unzip /tmp/dev.tar.gz
+		cd /tmp && tar -zxvf /tmp/dev.tar.gz
 		mv -f /tmp/mdserver-web-dev /www/server/mdserver-web
 		rm -rf /tmp/dev.tar.gz
 		rm -rf /tmp/mdserver-web-dev