diff --git a/modules/utils.js b/modules/utils.js
index 5845615..40a0860 100644
--- a/modules/utils.js
+++ b/modules/utils.js
@@ -26,7 +26,7 @@ async function getRegistrationCountryFromIp(ipAddress) {
 function signProfileData(dataBase64) {
     const serverKeys = certificatesManager.getKeys()
     try {
-        const privateKey = serverKeys.playerCertificateKeys.private
+        const privateKey = serverKeys.profilePropertyKeys.private
         const signer = crypto.createSign("SHA1")
         signer.update(dataBase64)
         signer.end()