diff --git a/movestone.lua b/movestone.lua
index 71f5eaa..b575eef 100644
--- a/movestone.lua
+++ b/movestone.lua
@@ -77,6 +77,7 @@ local rules = {
 minetest.register_node("digistuff:movestone", {
 	description = "Digilines Movestone",
 	groups = {cracky = 3,},
+	is_ground_content = false,
 	on_construct = function(pos)
 		local meta = minetest.get_meta(pos)
 		meta:set_string("formspec","field[channel;Channel;${channel}")