diff --git a/modules/programs/zsh/prezto.nix b/modules/programs/zsh/prezto.nix
index ddf862f98..1aa3af1e9 100644
--- a/modules/programs/zsh/prezto.nix
+++ b/modules/programs/zsh/prezto.nix
@@ -34,7 +34,8 @@ let
       pmoduleDirs = mkOption {
         type = types.listOf types.path;
         default = [ ];
-        example = [ "$HOME/.zprezto-contrib" ];
+        example = literalExpression
+          ''[ "''${config.home.homeDirectory}/.zprezto-contrib" ]'';
         description = "Add additional directories to load prezto modules from.";
       };