diff --git a/domains/koperski.json b/domains/koperski.json
index db17515658..c2f887d776 100644
--- a/domains/koperski.json
+++ b/domains/koperski.json
@@ -1,6 +1,6 @@
 {
     "owner": {
-        "username": "wkoperski",
+        "username": "w-koperski",
         "email": "koperski.wojciech.06@gmail.com"
     },
     "records": {