diff --git a/mage.go b/mage.go
index bd99aa2..6d323d9 100644
--- a/mage.go
+++ b/mage.go
@@ -62,7 +62,7 @@ func Docker() {
 	ver, err := gitTag()
 	qod.ANE(err)
 
-	shouldWork(ctx, nil, wd, "docker", "build", "-t", "xena/route-core:"+ver, "-f", "Dockerfile.core", ".")
+	shouldWork(ctx, nil, wd, "docker", "build", "-t", "xena/route-core", "-f", "Dockerfile.core", ".")
 	shouldWork(ctx, nil, wd, "docker", "build", "-t", "xena/routed:"+ver, "-f", "Dockerfile.routed", ".")
 	shouldWork(ctx, nil, wd, "docker", "build", "-t", "xena/route-httpagent:"+ver, "-f", "Dockerfile.agent", ".")
 }