diff --git a/code/game/machinery/computer/ai_core.dm b/code/game/machinery/computer/ai_core.dm
index 11d90f4094a..1fe5c3eaea8 100644
--- a/code/game/machinery/computer/ai_core.dm
+++ b/code/game/machinery/computer/ai_core.dm
@@ -225,7 +225,7 @@
 	qdel(src)
 
 /obj/structure/AIcore/welder_act(mob/user, obj/item/I)
-	if(!state)
+	if(state)
 		return
 	. = TRUE
 	if(!I.tool_use_check(user, 0))