diff --git a/cmd/frontend/users.go b/cmd/frontend/users.go
index 46df586..fbd705a 100644
--- a/cmd/frontend/users.go
+++ b/cmd/frontend/users.go
@@ -11,8 +11,8 @@ import (
 )
 
 func checkUserStrings(user *b.User) (string, int, bool) {
-	userLen := 255
-	nameLen := 56 // max value when aes encrypting up to 255 bytes
+	userLen := 63 // max value for utf-8 at 255 bytes
+	nameLen := 56 // max value when aes encrypting utf-8 at up to 255 bytes
 
 	if len(user.UserName) > userLen {
 		return "Benutzername", userLen, false