diff --git a/ci/jenkins/step/singleDevNightlyTest.groovy b/ci/jenkins/step/singleDevNightlyTest.groovy
index a935c4c8f7ca3bd5ca359347dee97008835d27d1..8f478cbc16173b5beb0f9ec1679fd2d6b0d7e423 100644
--- a/ci/jenkins/step/singleDevNightlyTest.groovy
+++ b/ci/jenkins/step/singleDevNightlyTest.groovy
@@ -30,7 +30,7 @@ timeout(time: 180, unit: 'MINUTES') {
     // sqlite database backend test
     load "ci/jenkins/step/cleanupSingleDev.groovy"
     
-    if (!fileExists('milvus-helm')) {
+    if (!fileExists('milvus-helm/charts/milvus')) {
         dir ("milvus-helm") {
             checkout([$class: 'GitSCM', branches: [[name:"${env.HELM_BRANCH}"]], userRemoteConfigs: [[url: "https://github.com/milvus-io/milvus-helm.git", name: 'origin', refspec: "+refs/heads/${env.HELM_BRANCH}:refs/remotes/origin/${env.HELM_BRANCH}"]]])
         }