How do I stop my dog from peeing on his front feet?

I have a 12 week old mini schnauzer that is trained to pee on a pad. Recently he has been shooting forward between his front feet. Sometimes he pees directly on one of his feet but otherwise the soil just spreads to his feet and gets both of them wet requiring me to wipe him and footprints each time he goes. Previously he was shooting straight down and it wasn't a problem. Any suggestions on how to address this? Very frustrating since he is going in the right place but not aiming correctly!