diff --git a/Jenkinsfile b/Jenkinsfile
index 45270c3..48bc44d 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -23,7 +23,9 @@ node("docker && linux && amd64") {
 			def jreVersion = version[1]
 
 			def guacamoleVersion
-			def image = docker.build("", "--build-arg TOMCAT_VERSION=${tomcatVersion} --build-arg JRE_VERSION=${jreVersion} .")
+			def image = docker.build(
+				"${dockerNamespace}/${dockerBase}:tomcat${tomcatVersion}-jre${jreVersion}",
+				"--build-arg TOMCAT_VERSION=${tomcatVersion} --build-arg JRE_VERSION=${jreVersion} .")
 
 			image.inside("-w /tmp") {
 				sh """