Yeovil hope to extend Walker's stay beyond 19 January (Getty Images)

The 20-year-old, who has scored three goals in 14 appearances for the Glovers, will stay at Huish Park until 19 January.

But boss Russell Slade hopes the Addicks will allow Walker to stay for the rest of the season.

"Sometimes as a smaller club you have to wait and see how it unfolds for them, but we are hopeful that we can extend it," he told the club website.