diff --git a/init.lua b/init.lua
index d135016..b460b6a 100644
--- a/init.lua
+++ b/init.lua
@@ -50,7 +50,7 @@ for n, def in pairs(minetest.registered_nodes) do
         minetest.override_item(n, {
             connects_to = {
                 -- standard groups walls connect to
-                "group:wall", "group:stone", "group:fence",
+                "group:wall", "group:stone", "group:fence", "group:wall_connected",
                 -- default
                 "default:sandstone", "default:sandstonebrick", "default:sandstone_block",
                 "default:desert_sandstone", "default:desert_sandstone_brick", "default:desert_sandstone_block",