diff --git a/dbus.c b/dbus.c
index 5bc7e93b..94b83864 100644
--- a/dbus.c
+++ b/dbus.c
@@ -797,6 +797,8 @@ const struct luaL_Reg awesome_dbus_lib[] =
     { "remove_match", luaA_dbus_remove_match },
     { "connect_signal", luaA_dbus_connect_signal },
     { "disconnect_signal", luaA_dbus_disconnect_signal },
+    { "__index", luaA_default_index },
+    { "__newindex", luaA_default_newindex },
     { NULL, NULL }
 };
 
diff --git a/keygrabber.c b/keygrabber.c
index ccf5bb45..c56bae6f 100644
--- a/keygrabber.c
+++ b/keygrabber.c
@@ -147,6 +147,8 @@ const struct luaL_Reg awesome_keygrabber_lib[] =
     { "run", luaA_keygrabber_run },
     { "stop", luaA_keygrabber_stop },
     { "isrunning", luaA_keygrabber_isrunning },
+    { "__index", luaA_default_index },
+    { "__newindex", luaA_default_newindex },
     { NULL, NULL }
 };
 
diff --git a/luaa.c b/luaa.c
index 01b08d2f..8af1dc01 100644
--- a/luaa.c
+++ b/luaa.c
@@ -254,7 +254,7 @@ luaA_awesome_index(lua_State *L)
         return 1;
     }
 
-    return 0;
+    return luaA_default_index(L);
 }
 
 /** Add a global signal.
@@ -361,6 +361,7 @@ luaA_init(xdgHandle* xdg)
         { "set_xproperty", luaA_set_xproperty },
         { "get_xproperty", luaA_get_xproperty },
         { "__index", luaA_awesome_index },
+        { "__newindex", luaA_default_newindex },
         { NULL, NULL }
     };
 
@@ -597,4 +598,16 @@ luaA_emit_refresh()
     signal_object_emit(globalconf.L, &global_signals, "refresh", 0);
 }
 
+int
+luaA_default_index(lua_State *L)
+{
+    return luaA_class_index_miss_property(L, NULL);
+}
+
+int
+luaA_default_newindex(lua_State *L)
+{
+    return luaA_class_newindex_miss_property(L, NULL);
+}
+
 // vim: filetype=c:expandtab:shiftwidth=4:tabstop=8:softtabstop=4:textwidth=80
diff --git a/luaa.h b/luaa.h
index c92aa61f..79927975 100644
--- a/luaa.h
+++ b/luaa.h
@@ -210,6 +210,8 @@ signal_array_t global_signals;
 
 int luaA_class_index_miss_property(lua_State *, lua_object_t *);
 int luaA_class_newindex_miss_property(lua_State *, lua_object_t *);
+int luaA_default_index(lua_State *);
+int luaA_default_newindex(lua_State *);
 
 void luaA_systray_invalidate(void);
 
diff --git a/mouse.c b/mouse.c
index a78fc7a4..8caf05da 100644
--- a/mouse.c
+++ b/mouse.c
@@ -106,7 +106,7 @@ luaA_mouse_index(lua_State *L)
 
     /* attr is not "screen"?! */
     if (A_STRNEQ(attr, "screen"))
-        return 0;
+        return luaA_default_index(L);
 
     if (!mouse_query_pointer_root(&mouse_x, &mouse_y, NULL, NULL))
     {
@@ -137,7 +137,7 @@ luaA_mouse_newindex(lua_State *L)
     int screen;
 
     if (A_STRNEQ(attr, "screen"))
-        return 0;
+        return luaA_default_newindex(L);
 
     screen = luaL_checknumber(L, 3) - 1;
     luaA_checkscreen(screen);
diff --git a/mousegrabber.c b/mousegrabber.c
index 35d87dda..fd0a209d 100644
--- a/mousegrabber.c
+++ b/mousegrabber.c
@@ -140,6 +140,8 @@ const struct luaL_Reg awesome_mousegrabber_lib[] =
     { "run", luaA_mousegrabber_run },
     { "stop", luaA_mousegrabber_stop },
     { "isrunning", luaA_mousegrabber_isrunning },
+    { "__index", luaA_default_index },
+    { "__newindex", luaA_default_newindex },
     { NULL, NULL }
 };
 
diff --git a/root.c b/root.c
index 2dea6349..d6258c3a 100644
--- a/root.c
+++ b/root.c
@@ -433,6 +433,8 @@ const struct luaL_Reg awesome_root_lib[] =
     { "drawins", luaA_root_drawins },
     { "wallpaper", luaA_root_wallpaper },
     { "tags", luaA_root_tags },
+    { "__index", luaA_default_index },
+    { "__newindex", luaA_default_newindex },
     { NULL, NULL }
 };
 
diff --git a/screen.c b/screen.c
index e04e310b..b5716267 100644
--- a/screen.c
+++ b/screen.c
@@ -502,7 +502,7 @@ luaA_screen_index(lua_State *L)
         return 1;
     }
 
-    return 0;
+    return luaA_default_index(L);
 }
 
 /** Add a signal to a screen.
@@ -610,6 +610,7 @@ const struct luaL_Reg awesome_screen_methods[] =
 {
     { "count", luaA_screen_count },
     { "__index", luaA_screen_module_index },
+    { "__newindex", luaA_default_newindex },
     { NULL, NULL }
 };
 
@@ -620,6 +621,7 @@ const struct luaL_Reg awesome_screen_meta[] =
     { "disconnect_signal", luaA_screen_disconnect_signal },
     { "emit_signal", luaA_screen_emit_signal },
     { "__index", luaA_screen_index },
+    { "__newindex", luaA_default_newindex },
     { NULL, NULL }
 };