diff --git a/src/nhlua.c b/src/nhlua.c
index 13e4196c8..f215ea01c 100644
--- a/src/nhlua.c
+++ b/src/nhlua.c
@@ -884,6 +884,7 @@ lua_State *L;
 static const struct luaL_Reg nhl_u_functions[] = {
     { "clear_inventory", nhl_u_clear_inventory },
     { "giveobj", nhl_u_giveobj },
+    { NULL, NULL }
 };
 
 void