Board Thread:Help Desk/@comment-8839920-20130429215938

I was playing the other day, and I killed the Wall of Flesh.

Hardmode was activated, so I decided to go ahead a mine a demon altar with my PwnHammer.

I did everything, but then when I mined the demon altar it only said "your world has been blessed blah blah blah", but it doesnt drop the demon altar.

Why? 