diff --git a/nixops/common-users.nix b/nixops/common-users.nix
index 15510f4d..de887a58 100644
--- a/nixops/common-users.nix
+++ b/nixops/common-users.nix
@@ -40,6 +40,7 @@
     openssh.authorizedKeys.keys = [
       "ecdsa-sha2-nistp384 AAAAE2VjZHNhLXNoYTItbmlzdHAzODQAAAAIbmlzdHAzODQAAABhBE/sPOOiw3843+rrcYV2pOVkffNc1xsOgnuCUmy1Fa2VF8x9kqmgQv61sxsuKRkKKoinvqrASxLkWVd6nkiiDuEISibEXs8r1BwuT05cS7RkEhCakSMZ6y/iqOtjt2bx+A=="
     ];
+    shell = pkgs.zsh;
   };
   occheung = {
     isNormalUser = true;