1 files changed, 4 insertions, 4 deletions

diff --git a/src/deep.c b/src/deep.c
index fe7a21f..6a735b8 100644
--- a/src/deep.c
+++ b/src/deep.c
@@ -519,13 +519,13 @@ void* luaG_todeep( lua_State* L, luaG_IdFunction idfunc, int index)
  *   the id function of the copied value, or NULL for non-deep userdata
  *   (not copied)
  */
-luaG_IdFunction copydeep( Universe* U, lua_State* L, lua_State* L2, int index, LookupMode mode_)
+bool_t copydeep( Universe* U, lua_State* L, lua_State* L2, int index, LookupMode mode_)
 {
         char const* errmsg;
         luaG_IdFunction idfunc = get_idfunc( L, index, mode_);
         if( idfunc == NULL)
         {
-                return NULL;   // not a deep userdata
+                return FALSE;   // not a deep userdata
         }
 
         errmsg = push_deep_proxy( U, L2, *(DeepPrelude**) lua_touserdata( L, index), mode_);
@@ -535,5 +535,5 @@ luaG_IdFunction copydeep( Universe* U, lua_State* L, lua_State* L2, int index, L
                 lua_State* errL = (mode_ == eLM_FromKeeper) ? L2 : L;
                 luaL_error( errL, errmsg);
         }
-        return idfunc;
-}
+        return TRUE;
+}
\ No newline at end of file