If your cat is continuing to pee in the same spot, you might want to consider placing a litter box in that area. This will help your cat know that this is an acceptable place to pee. If you're having trouble getting your cat to use the litter box, try training them with some positive reinforcement. Direct them during house training. Spray the area with vinegar. Remove their mark. Sprinkle on citronella. Create a barrier. Spice it up with cayenne pepper or chili powder. Grow plants that cats don't like. Keep it clean.