diff --git a/Jenkinsfile b/Jenkinsfile
index 3134ded..6200705 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -8,9 +8,8 @@ def build_docker(docker_image, docker_dir, release_dir) {
 	args += " --build-arg IMAGE_FROM=${docker_image}"
 	args += " --build-arg LIBS_BUILD_NUMBER=${env.BUILD_NUMBER}"
 	args += " --build-arg JOBS_COUNT=${env.JOBS_COUNT}"
-	def shstk_docker = docker.build(${image_name}, ./docker/${docker_dir}-shstk --no-cache ${args})
-	def vol = "-v " + release_dir + ":/soft/release"
-	shstk_docker.inside(vol) {
+	def shstk_docker = docker.build("${image_name}", "./docker/${docker_dir}-shstk --no-cache ${args}")
+	shstk_docker.inside("-v " + release_dir + ":/soft/release") {
 		sh 'cp -vf /soft/shstk/release/* /soft/release/ || true'
 	}
 	return "\n - ${image_name}"