diff --git a/pkgs/desktops/pantheon/nixpkgs_github_update/lib/nixpkgs_github_update/github_latest_version.ex b/pkgs/desktops/pantheon/nixpkgs_github_update/lib/nixpkgs_github_update/github_latest_version.ex
index bd4bb8100ba5..ad7f96d6b2a6 100644
--- a/pkgs/desktops/pantheon/nixpkgs_github_update/lib/nixpkgs_github_update/github_latest_version.ex
+++ b/pkgs/desktops/pantheon/nixpkgs_github_update/lib/nixpkgs_github_update/github_latest_version.ex
@@ -24,7 +24,7 @@ defmodule NixpkgsGitHubUpdate.GitHubLatestVersion do
     String.to_charlist("#{System.get_env("OAUTH_TOKEN")}")
   end
 
-  defp put_token(headers, token) when is_binary(token) do
+  defp put_token(headers, token) when is_list(token) do
     Map.put_new(headers, 'Authorization', 'token #{token}')
   end