diff --git a/build.sh b/build.sh
index f767c2ed9e8bf9d4d27a9475015c4d97b921633b..b7f11d7f4e35995e09bc749de5e3acd41ad13103 100755
--- a/build.sh
+++ b/build.sh
@@ -78,6 +78,7 @@ function run-make() {
 
 # The current default platform
 lcg_platform=x86_64-slc6-gcc8-opt
+lcg_version=97.0.2
 
 check-cepcsw-envvar || exit -1
 
diff --git a/setup.sh b/setup.sh
index 17f0ac16ae5cf84dabade24016c439f7635273d7..bf0d11953647b9626c0d71c8d206733fba7beb68 100644
--- a/setup.sh
+++ b/setup.sh
@@ -5,8 +5,6 @@
 #
 # Usage:
 # $ source setup.sh
-# or:
-# $ source setup.sh 97.0.2
 #
 # Author: Tao Lin <lintao@ihep.ac.cn>
 ##############################################################################
@@ -48,7 +46,7 @@ function setup-external() {
 # Parse the command line options
 ##############################################################################
 
-CEPCSW_LCG_VERSION=${1}; shift
+# CEPCSW_LCG_VERSION=${1}; shift
 
 if [ -z "$CEPCSW_LCG_VERSION" ]; then
     CEPCSW_LCG_VERSION=97.0.2