diff --git a/domains/halinh0506.json b/domains/halinh0506.json
index 30e24727f..a1e0f3f34 100644
--- a/domains/halinh0506.json
+++ b/domains/halinh0506.json
@@ -8,6 +8,6 @@
     "MX": [
       "halinh0506-isa-dev03c.mail.protection.outlook.com"
       ],
-    "TXT": ["v=spf1 include:spf.protection.outlook.com -all"]
+    "TXT": "v=spf1 include:spf.protection.outlook.com -all"
   }
 }