A ding or roll is ok, that is what it is supposed to do as opposed to chipping. I rolled or "dinged" my SHBM when in Kenya back in 2000 only because it sliced through the wood and caught a rock on the other side. It did what it was supposed to do and rolled. Cheaper or badly heat treated knives would have chipped. I used that SHBM for two months without sharpening it or fixing the ding. In fact it is still dinged as I have yet to sharpen it since 2000.

Don't let it bother you as the knife did what it was supposed to. I will let others here help you out with how to fix it.

Now I must say that I did chip my DF only because it was one of those that slipped though with a poor heat treat. It was nobody's fault, there will always be a bad apple in the bunch no matter who makes it or where it came from. All knife makers have a bad one now and again. Dan replaced it and the new one has been beaten badly and just laughs at me. I have yet to destroy it.

I am sure HD, Andy or someone else can give the advice when it comes to fixing it. Until then do not be bummed out... The knife did what it was supposed to do.