diff --git a/code/modules/antagonists/nightmare/nightmare_equipment.dm b/code/modules/antagonists/nightmare/nightmare_equipment.dm
index d84c29036ff..f22e0d9fecd 100644
--- a/code/modules/antagonists/nightmare/nightmare_equipment.dm
+++ b/code/modules/antagonists/nightmare/nightmare_equipment.dm
@@ -13,6 +13,7 @@
 	item_flags = ABSTRACT | DROPDEL | ACID_PROOF
 	w_class = WEIGHT_CLASS_HUGE
 	sharpness = SHARP_EDGED
+	tool_behaviour = TOOL_MINING
 	hitsound = 'sound/weapons/bladeslice.ogg'
 	wound_bonus = -30
 	bare_wound_bonus = 20