1 files changed, 4 insertions, 1 deletions

diff --git a/src/tools.c b/src/tools.c
index d149f9b..81ddf5c 100644
--- a/src/tools.c
+++ b/src/tools.c
@@ -1074,7 +1074,10 @@ int luaG_newdeepuserdata( lua_State* L, luaG_IdFunction idfunc)
         {
                 int oldtop = lua_gettop( L);
                 prelude->deep = idfunc( L, eDO_new);
-                ASSERT_L( prelude->deep);
+                if( prelude->deep == NULL)
+                {
+                        luaL_error( L, "idfunc(eDO_new) failed to create deep userdata (out of memory)");
+                }
 
                 if( lua_gettop( L) - oldtop != 0)
                 {