diff --git a/code/game/mecha/equipment/tools/mining_tools.dm b/code/game/mecha/equipment/tools/mining_tools.dm
index 63e70626a8d..94c944f75be 100644
--- a/code/game/mecha/equipment/tools/mining_tools.dm
+++ b/code/game/mecha/equipment/tools/mining_tools.dm
@@ -16,6 +16,7 @@
 	if(isobj(target))
 		var/obj/target_obj = target
 		if(target_obj.unacidable)
+			src.occupant_message("<span class='danger'>[target] is too durable to drill through.</span>")
 			return
 	target.visible_message("<span class='warning'>[chassis] starts to drill [target].</span>",
 					"<span class='userdanger'>[chassis] starts to drill [target]...</span>",