diff --git a/libGeoIP/GeoIPUpdate.c.old b/libGeoIP/GeoIPUpdate.c
index c5a4241..28279cb 100644
--- a/libGeoIP/GeoIPUpdate.c.old
+++ b/libGeoIP/GeoIPUpdate.c
@@ -823,7 +823,7 @@ short int GeoIP_update_database_general (char * user_id,char * license_key,char
 		free(buf);
 		GeoIP_printf(f, "%s is up to date, no updates required\n", geoipfilename);
 		return GEOIP_NO_NEW_UPDATES;
-	} else if (strstr(compr, "Invalid UserId") != NULL){
+	} else if (strstr(compr, "Invalid user ID") != NULL){
 		free(buf);
 		return GEOIP_USER_ID_INVALID_ERR;
 	} else if (strstr(compr, "Invalid product ID or subscription expired") != NULL){