diff --git a/nixos/modules/services/web-apps/mediawiki.nix b/nixos/modules/services/web-apps/mediawiki.nix
index 5fd4a5d059a6..930b58daf2df 100644
--- a/nixos/modules/services/web-apps/mediawiki.nix
+++ b/nixos/modules/services/web-apps/mediawiki.nix
@@ -466,7 +466,7 @@ in
           defaultText = literalExpression "true";
           description = ''
             Create the database and database user locally.
-            This currently only applies if database type "mysql" is selected.
+            This currently only applies if database type "mysql" or "postgres" is selected.
           '';
         };
       };