One of my dogs also did that when she was a pup (she'd eat her own & other dog's poop also) but she outgrew it after about 6 months of age. We looked into remedies like some stuff you put in their food that makes their poop taste "undesirable" (as if it weren't undesirable enough :? ) but we decided not to get it since we don't like the idea of giving our pets extra chemicals that their body has to deal with. We just made sure we kept an eye on her & always scooped the poop right away.
One time I saw her run up behind our other dog who was going potty & grab a turd as it was coming out & before it even hit the ground yet -- mmm, mmm, nice & fresh, right out of the oven!! Well, in that split-second, I became an absolute lunatic madwoman -- before I had time to think, I ran across the yard to her faster than I have ever run in my whole life, screaming at the top of my lungs & opened her mouth to get it out before she could swallow it -- she never even knew what happened -- she stood there with this dazed look on her face & I was doubled over gasping for air & gagging from what I had just done!!
Ahhh, what fond memories I have of being a Dog-Mom. But, truth be told, I wouldn't trade a minute of it (well, except maybe the minute I just described) - they've always given me millions times more love in return.
So, I have no real remedy except vigilance & time for the pup to outgrow it.
Good luck.