diff --git a/scripts/install_centos.sh b/scripts/install_centos.sh
index 4bdd9fba9..2186ce0f0 100755
--- a/scripts/install_centos.sh
+++ b/scripts/install_centos.sh
@@ -87,9 +87,7 @@ if [ ! -f '/usr/bin/pip' ];then
 fi 
 
 
-if [ ! -d /www/server/lib ]; then
-	cd /www/server/mdserver-web/scripts && ./lib.sh
-fi  
+cd /www/server/mdserver-web/scripts && ./lib.sh
 
 pip install -r /www/server/mdserver-web/requirements.txt