Will a baby snails shell regrow if it has cracked?

i have a baby aquatic snail (most likely a mystery snail) in my fish tank. It is about the size of an eraser on a pencil. I noticed it hadn't moved from the same spot for a day. When I took it out to check on it, i noticed a small piece of gravel was jammed deep inside of the shell opening. The snail is too small for tweezers and when I was attempting to remove the rock, the tip of the shell broke in half. I was able to remove the rock afterwards and the shell still covers the snail's body and now it is moving around the tank again. Will the part of the shell that broke off regrow as he gets bigger?