diff --git a/Jenkinsfile b/Jenkinsfile
index f6a5076..6bab94e 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -1,10 +1,15 @@
 pipeline {
     agent none
+    environment {
+        GIT_REF = """${sh(
+                script: 'git describe --tags --exact-match 2>/dev/null || git symbolic-ref --short HEAD'
+                returnStdout: true,
+            )}""" 
+    }
     stages {
         stage('Build') {
             agent { label 'linux-aarch64' }
             steps {
-                env.GIT_REF = sh(script: 'git describe --tags --exact-match 2>/dev/null || git symbolic-ref --short HEAD', returnStdout: true).trim()
                 sh "podman build -t docker.io/thallian/atuin:${env.GIT_REF} ."
             }
         }