diff --git a/Jenkinsfile b/Jenkinsfile
index d463c80..d56c308 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -45,7 +45,7 @@ pipeline {
     stage('Build production deliverable') {
       steps {
         script {
-          ZIP_DATE=$(date "+%Y-%m-%d_%H-%M-%S")
+          ZIP_DATE=$(date '+%Y-%m-%d_%H-%M-%S')
           env.ZIP_FILE="url-shortener_$ZIP_DATE" 
         }
         catchError(buildResult: 'FAILURE', stageResult: 'FAILURE') {