diff --git a/Jenkinsfile b/Jenkinsfile
index 81f06cd..22a12e1 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -77,7 +77,7 @@ podTemplate(
                 credentialsId: 'harbor.loafle.net',
                 usernameVariable: 'HARBOR_USER',
                 passwordVariable: 'HARBOR_PASSWORD']]) {
-                env.CONTAINER_IMAGE_NAME = "prototype/"env.PROJECT_NAME
+                env.CONTAINER_IMAGE_NAME = "prototype/${env.PROJECT_NAME}"
                 sh """
                     docker login -u "${HARBOR_USER}" -p "${HARBOR_PASSWORD}" ${dockerRegistryUrl}
                     docker build -t ${dockerRegistryUrl}/${env.CONTAINER_IMAGE_NAME}:${env.PROJECT_VERSION} --build-arg PROJECT_NAME=${env.PROJECT_NAME} --build-arg PROJECT_VERSION=${env.PROJECT_VERSION} .