diff --git a/ci/jenkins/step/build.groovy b/ci/jenkins/step/build.groovy
index 46db152006..6bf5052400 100644
--- a/ci/jenkins/step/build.groovy
+++ b/ci/jenkins/step/build.groovy
@@ -2,7 +2,7 @@ timeout(time: 60, unit: 'MINUTES') {
     dir ("ci/scripts") {
         withCredentials([usernamePassword(credentialsId: "${params.JFROG_CREDENTIALS_ID}", usernameVariable: 'USERNAME', passwordVariable: 'PASSWORD')]) {
             def checkResult = sh(script: "./check_ccache.sh -l ${params.JFROG_ARTFACTORY_URL}/ccache", returnStatus: true)
-            
+
             if ("${BINRARY_VERSION}" == "gpu") {
                 sh "/bin/bash --login -c \". ./before-install.sh && ./build.sh -t ${params.BUILD_TYPE} -o ${env.MILVUS_INSTALL_PREFIX} -l -g -u -c\""
             } else {
diff --git a/ci/scripts/build.sh b/ci/scripts/build.sh
index b36e927214..b440edff02 100755
--- a/ci/scripts/build.sh
+++ b/ci/scripts/build.sh
@@ -17,6 +17,7 @@ BUILD_UNITTEST="OFF"
 INSTALL_PREFIX="/var/lib/milvus"
 FAISS_ROOT=""
 PRIVILEGES="OFF"
+CUSTOMIZATION="OFF" # default use origin faiss
 BUILD_COVERAGE="OFF"
 USE_JFROG_CACHE="OFF"
 RUN_CPPLINT="OFF"