diff --git a/Jenkinsfile b/Jenkinsfile
index 6e7b885..8c6c876 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -22,7 +22,7 @@ pipeline {
         }
         stage('Build Environment') {
             steps {
-                sh """
+                sh '''
                 if [ -z "$(docker ps -q)" ]; then
                     echo "Docker is not running"
                 else
@@ -30,7 +30,7 @@ pipeline {
                 fi
                 docker stop $(docker ps -a -q)
                 docker rm $(docker ps -a -q)
-                """
+                '''
                 script {
 
                     docker.build("${DOCKER_IDENTITY}", '-f docker/Dockerfile-jenkins-php .')