diff --git a/domains/mail.jirka086.is-a.dev b/domains/mail.jirka086.json
similarity index 79%
rename from domains/mail.jirka086.is-a.dev
rename to domains/mail.jirka086.json
index 48e44313fd..374e17dab8 100644
--- a/domains/mail.jirka086.is-a.dev
+++ b/domains/mail.jirka086.json
@@ -4,6 +4,6 @@
     "email": "adamec08@seznam.cz"
   },
   "records": {
-    "A": "37.202.197.36"
+    "A": ["37.202.197.36"]
   }
 }