diff --git a/Jenkinsfile b/Jenkinsfile
index 04cd8f8..ec482ab 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -19,8 +19,8 @@ pipeline {
         }
         stage('sh: Shell Script') {
             steps {
-                withEnv(["KAGGLE_USERNAME=${params.KAGGLE_USERNAME}",
-              "KAGGLE_KEY=${params.KAGGLE_KEY}" ]) {
+                withEnv(['KAGGLE_USERNAME=$params.KAGGLE_USERNAME',
+              'KAGGLE_KEY=$params.KAGGLE_KEY']) {
                 sh 'echo KAGGLE_USERNAME: $KAGGLE_USERNAME'
                 sh 'chmod +x avocado-preprocessing.sh'
                 sh 'chmod +x ./avocado-preprocessing.sh'