Possibly (you would need to check you can get your hand in when the pop top is down when it's sometimes still necessary to get in the toilet compartment) but I also put one on the wardrobe to keep that shut and clearly that has to go on the outside. We don't notice them - they are a cream colour - it doesn't in our mind look odd and allows a quick visual check before we set off that everything is secure. Both have been there for 2 seasons and prevented either door opening but despite this the toilet hinges still broke as they are so flimsy. I even replaced one but the screws came loose and it broke again. The door is just too heavy for the lightweight hinge construction.