diff --git a/game/modules/tome/data/zones/sandworm-lair/npcs.lua b/game/modules/tome/data/zones/sandworm-lair/npcs.lua
index 6edc98dc9621b61d94aa2456f4eebd7577f101b8..82ed46ac8a959da2b73870edb4b9ffbab4b43ec1 100644
--- a/game/modules/tome/data/zones/sandworm-lair/npcs.lua
+++ b/game/modules/tome/data/zones/sandworm-lair/npcs.lua
@@ -45,6 +45,7 @@ newEntity{ define_as = "SANDWORM_TUNNELER",
 	move_body = 1,
 	size_category = 5,
 	no_breath = 1,
+	instakill_immune = 1,
 
 	autolevel = "warrior",
 	ai = "sandworm_tunneler", ai_state = {},