diff --git a/lib/express/sgid.js b/lib/express/sgid.js
index 727cef5..23c4c20 100644
--- a/lib/express/sgid.js
+++ b/lib/express/sgid.js
@@ -308,7 +308,7 @@ const sgIDScopeToMyInfoField = (persona, scope) => {
       return defaultUndefinedToNA(persona.passexpirydate?.value)
     case 'myinfo.marital_status':
       return defaultUndefinedToNA(persona.marital?.desc)
-    case 'myinfo.mobile_number_with_prefix':
+    case 'myinfo.mobile_number_with_country_code':
       return formatMobileNumberWithPrefix(persona.mobileno)
     default:
       return 'NA'