diff --git a/Jenkinsfile b/Jenkinsfile
index 5f32e57..3481bb3 100644
--- a/Jenkinsfile
+++ b/Jenkinsfile
@@ -143,7 +143,7 @@ def build(tagSet) {
     def builds = [:]
 
     for (String tag : tagSet) {
-        def baseImg = docker.build("${maintainer}/${imagename}:${tag}", "--no-cache ${tag}")
+        def baseImg = docker.build("${maintainer}/${imagename}:${tag}", "--no-cache ${tag.split('.')(0)}/${tag}")
         echo "built ${tag}; adding to the push queue"
         builds.put(tag, baseImg);
     }