diff --git a/Jenkinsfile.pjt b/Jenkinsfile.pjt
index 6aadebd..afa9862 100644
--- a/Jenkinsfile.pjt
+++ b/Jenkinsfile.pjt
@@ -31,12 +31,14 @@ pipeline {
       }
     }
 
-    stage('3) image tab create') {
+    stage('3) image tag create') {
       steps {
         script {
-          env.SHORT_SHA = sh(script: "git rev-parse --short HEAD", returnStdout: true).trim()
-          echo "SHORT_SHA = ${env.SHORT_SHA}"
-          env.IMAGE_TAG = "${env.BUILD_NUMBER}-${env.SHORT_SHA}"
+          env.IMAGE_TAG = sh(
+            script: 'echo "${BUILD_NUMBER}-$(git rev-parse --short HEAD)"',
+            returnStdout: true
+          ).trim()
+
           echo "IMAGE_TAG = ${env.IMAGE_TAG}"
         }
       }