diff --git a/nixos/modules/services/databases/mysql.nix b/nixos/modules/services/databases/mysql.nix
index e5e8a57f4b0..1180531248f 100644
--- a/nixos/modules/services/databases/mysql.nix
+++ b/nixos/modules/services/databases/mysql.nix
@@ -53,7 +53,8 @@ in
       package = mkOption {
         type = types.package;
         default = pkgs.mysql;
-        example = literalExample "pkgs.mysql";
+        defaultText = "pkgs.mysql";
+        example = literalExample "pkgs.mysql55";
         description = "
           Which MySQL derivation to use.
         ";