diff --git a/nixos/modules/config/shells-environment.nix b/nixos/modules/config/shells-environment.nix
index b2bfc785f2a..31adc9b8262 100644
--- a/nixos/modules/config/shells-environment.nix
+++ b/nixos/modules/config/shells-environment.nix
@@ -34,6 +34,7 @@ in
 
     environment.variables = mkOption {
       default = {};
+      example = { EDITOR = "nvim"; VISUAL = "nvim"; };
       description = ''
         A set of environment variables used in the global environment.
         These variables will be set on shell initialisation (e.g. in /etc/profile).