diff --git a/src/index.js b/src/index.js
index 7dde300..251c735 100644
--- a/src/index.js
+++ b/src/index.js
@@ -12,7 +12,7 @@ export default {
       const geo = {
         flag: country && getFlag(country),
         country: country,
-        countryRegion: request.cf?.region || request.headers.get('cf-ipregion'),
+        countryRegion: request.cf?.region || request.headers.get('cf-region'),
         city: request.cf?.city || request.headers.get('cf-ipcity'),
         region: request.cf?.colo || colo,
         latitude: request.cf?.latitude || request.headers.get('cf-iplatitude'),