diff --git a/domains/tungnm15.json b/domains/tungnm15.json
index b664804a3a..aee5c0909c 100644
--- a/domains/tungnm15.json
+++ b/domains/tungnm15.json
@@ -6,8 +6,8 @@
   },
   "records": {
     "MX": [
-      { "priority": 10, "value": "mx1.improvmx.com." },
-      { "priority": 20, "value": "mx2.improvmx.com." }
+      { "priority": 10, "value": "mx1.improvmx.com" },
+      { "priority": 20, "value": "mx2.improvmx.com" }
     ],
     "TXT": [
       "v=spf1 include:spf.improvmx.com ~all"