diff --git a/Jenkinsfile b/Jenkinsfile
index 44f80a4..aaf49f4 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -20,9 +20,10 @@ node("docker && linux && amd64") {
 		versions.each { version ->
 			def tomcatVersion = version[0]
 			def jreVersion = version[1]
+			def image
 
 			ansiColor {
-				def image = docker.build(
+				image = docker.build(
 					"${dockerNamespace}/${dockerBase}:tomcat${tomcatVersion}-${jreVersion}",
 					"--build-arg TOMCAT_VERSION=${tomcatVersion} --build-arg TOMCAT_JRE=${jreVersion} .")
 			}