diff --git a/3d_armor/api.lua b/3d_armor/api.lua
index 0d3246a..13b31f8 100644
--- a/3d_armor/api.lua
+++ b/3d_armor/api.lua
@@ -196,6 +196,9 @@ armor.set_player_armor = function(self, player)
 	local attributes = {}
 	local levels = {}
 	local groups = {}
+	if minetest.settings:get("enable_damage") then
+		groups["immortal"] = 1
+	end
 	local change = {}
 	for _, phys in pairs(self.physics) do
 		physics[phys] = 1