diff --git a/domains/maragi.is-cool.dev.json b/domains/maragi.is-cool.dev.json
index b8915578..41a7c219 100644
--- a/domains/maragi.is-cool.dev.json
+++ b/domains/maragi.is-cool.dev.json
@@ -8,7 +8,7 @@
 
     "record": {
         "A": ["69.30.249.53"],
-        "mx": ["mail.is-a.dev"],
+        "MX": ["mail.is-a.dev"],
         "TXT": ["v=spf1 mx a:mail.is-a.dev ~all"]
     },