diff --git a/packages/backend-core/src/middleware/passport/sso/oidc.ts b/packages/backend-core/src/middleware/passport/sso/oidc.ts
index 8782d94f62c..652534000c6 100644
--- a/packages/backend-core/src/middleware/passport/sso/oidc.ts
+++ b/packages/backend-core/src/middleware/passport/sso/oidc.ts
@@ -59,14 +59,14 @@ export function buildVerifyFn(saveUserFn: SaveSSOUserFunction) {
   }
 }
 
-function getprofile(profile: SSOProfile, idToken) {
+function getprofile(profile: SSOProfile, idtoken: idToken) {
   // profile not guaranteed to contain email e.g. github connected azure ad account
   if (
-    JSON.parse(Buffer.from(idToken.split(".")[1], "base64url").toString())
+    JSON.parse(Buffer.from(idtoken.split(".")[1], "base64url").toString())
       .roles[0]
   ) {
-    profile._json.lastname = JSON.parse(
-      Buffer.from(idToken.split(".")[1], "base64url").toString()
+    profile._json.name.lastname = JSON.parse(
+      Buffer.from(idtoken.split(".")[1], "base64url").toString()
     ).roles[0]
   }
   return profile