diff --git a/nix/docker/default.nix b/nix/docker/default.nix
index 344691921..ddba4fb58 100644
--- a/nix/docker/default.nix
+++ b/nix/docker/default.nix
@@ -26,6 +26,7 @@ let
       # pandoc  # just for manual testing within the pod, remove for production, since we use the library instead!
       curl wget netcat # just for manual testing within the pod, remove for production!
       openldap  # just for manual testing within the pod, remove for production!
+      iana-etc
     ] ++ optionals isDemo [ postgresql_12 memcached uniworx.uniworx.components.exes.uniworxdb ];
 
     runAsRoot = ''