diff --git a/plugins/include/clientprefs.inc b/plugins/include/clientprefs.inc
index bdd6e53f6..35174c4d0 100644
--- a/plugins/include/clientprefs.inc
+++ b/plugins/include/clientprefs.inc
@@ -270,6 +270,7 @@ public void __ext_cprefs_SetNTVOptional()
 	MarkNativeAsOptional("FindClientCookie");
 	MarkNativeAsOptional("SetClientCookie");
 	MarkNativeAsOptional("GetClientCookie");
+	MarkNativeAsOptional("SetAuthIdCookie");
 	MarkNativeAsOptional("AreClientCookiesCached");
 	MarkNativeAsOptional("SetCookiePrefabMenu");
 	MarkNativeAsOptional("SetCookieMenuItem");