diff --git a/code/modules/projectiles/gun.dm b/code/modules/projectiles/gun.dm
index f8c0f4d924e..69fde6ea858 100644
--- a/code/modules/projectiles/gun.dm
+++ b/code/modules/projectiles/gun.dm
@@ -459,7 +459,7 @@
 		var/obj/item/item_to_remove = tgui_input_list(user, "Attachment to remove", "Attachment Removal", sort_names(possible_items))
 		if(isnull(item_to_remove))
 			return
-		if(user.canUseTopic(src, BE_CLOSE, FALSE, NO_TK))
+		if(!user.canUseTopic(src, BE_CLOSE, FALSE, NO_TK))
 			return
 		return remove_gun_attachment(user, I, item_to_remove)