diff --git a/auth.go b/auth.go
index 5983c85..f81d864 100644
--- a/auth.go
+++ b/auth.go
@@ -36,7 +36,7 @@ func verifyTokenInSession(c echo.Context) (bool, *mastodon.Account, error) {
 }
 
 type LoginRequest struct {
-	ServerHost string `validate:"required,hostname,fqdn" form:"server"`
+	ServerHost string `validate:"required,fqdn" form:"server"`
 	Redirect   string `validate:"url_encoded" form:"redir"`
 }
 
diff --git a/config.go b/config.go
index 9959997..5868a8d 100644
--- a/config.go
+++ b/config.go
@@ -21,7 +21,7 @@ type (
 	}
 
 	AppConfigBase struct {
-		LocalDomain        string `validate:"required,hostname|hostname_port"`
+		LocalDomain        string `validate:"required,fqdn"`
 		Environment        string `validate:"printascii"`
 		StorageDir         string
 		LogoImageBlueBack  image.Image