diff --git a/mods/doors/init.lua b/mods/doors/init.lua
index 4ee2c5ab..2fcc23de 100644
--- a/mods/doors/init.lua
+++ b/mods/doors/init.lua
@@ -608,6 +608,7 @@ function doors.register_trapdoor(name, def)
 
 			return secret, "a locked trapdoor", owner
 		end
+		def.node_dig_prediction = ""
 	else
 		def.on_blast = function(pos, intensity)
 			minetest.remove_node(pos)