diff --git a/src/threads.h b/src/threads.h
index e0905a3cbfd4053f65074bfe4d2c5df3d04546e1..e7cffb3f351329d09146fab9264d6cc354b83616 100644
--- a/src/threads.h
+++ b/src/threads.h
@@ -435,6 +435,8 @@ void f_all_threads(INT32 args);
 #define mt_destroy(X)
 #define THREADS_ALLOW()
 #define THREADS_DISALLOW()
+#define THREADS_ALLOW_UID()
+#define THREADS_DISALLOW_UID()
 #define HIDE_GLOBAL_VARIABLES()
 #define REVEAL_GLOBAL_VARIABLES()
 #define th_init()