Tab that goes in zipper pull is missing

I have a child's Patagonia puffer coat. The little piece at the bottom which goes into the zipper pull is missing; Can I fix that on my own somehow?

crwdns2934089:0crwdne2934089:0 crwdns2934093:0crwdne2934093:0

crwdns2934109:0crwdne2934109:0

crwdns2889612:0crwdne2889612:0 0
crwdns2934285:0crwdne2934285:0