diff --git a/Jenkinsfile b/Jenkinsfile
index 9c5f58f..a36f404 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -85,7 +85,7 @@ pipeline {
                                 // build.push("${exercise}-${tag}")
                              
                                 // switch to buildx, which is not supported by the jenkins docker plugin
-                                sh 'docker buildx create --use --name multiarch --append
+                                sh 'docker buildx create --use --name multiarch --append'
                                 sh 'docker buildx inspect --bootstrap'
                                 sh 'docker buildx ls'
                                 sh 'docker login -u tieradmin -p $DOCKERHUBPW'