diff --git a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
index f15305f9c..d16492177 100644
--- a/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
+++ b/lib/pleroma/web/mastodon_api/controllers/account_controller.ex
@@ -221,6 +221,7 @@ def update_credentials(%{assigns: %{user: user}, body_params: params} = conn, _p
       # Note: param name is indeed :discoverable (not an error)
       |> Maps.put_if_present(:is_discoverable, params[:discoverable])
       |> Maps.put_if_present(:birthday, params[:birthday])
+      |> Maps.put_if_present(:language, params[:language])
 
     # What happens here:
     #