The shelf stud support broke

I pried out the broken stud, and tried to put the new one in. There were no instructions, so I put it in, but it was loose and unusable. Also, I ended up with the wrong type of shelf stud - I had a rear one instead of a front one. So, I used gorilla glue and duct-taped the stud in place and let it harden overnight. It doesn't look great, because it sags a bit, but the glue is holding and the shelf stays up now.