club repairs?

 Hi all,  While playing a chip from a downslope yesterday evening I heard a nasty clunk. Checking the sole of my club there is now a nasty chip in the sole of my mizuno mx forged wedge as it had struck a piece of flint lurking just under the grass. Can these type of flaws be repaired? It's on the sole so only cosmetic but still annoying and will affect value should I be tempted to change it in the future. Any suggestions would be much appreciated.

 Many thanks for your help lads, will try the file treatment and have a much closer look at the lie on these banks in future!