diff --git a/src/App/DNSManagerDomainsInterface.purs b/src/App/DNSManagerDomainsInterface.purs
index 577f56a..b257013 100644
--- a/src/App/DNSManagerDomainsInterface.purs
+++ b/src/App/DNSManagerDomainsInterface.purs
@@ -465,7 +465,6 @@ handleAction = case _ of
 
 build_new_domain :: String -> String -> String
 build_new_domain sub tld
-  | sub == ""        = "." <> tld
   | endsWith "." sub = sub <> tld
   | otherwise        = sub <> "." <> tld