diff --git a/collects/srfi/29/localization.ss b/collects/srfi/29/localization.ss
index b9cc2e63d4..aee26695d6 100644
--- a/collects/srfi/29/localization.ss
+++ b/collects/srfi/29/localization.ss
@@ -105,7 +105,7 @@
      (lambda ()
        ;; ... but disable `#reader':
        (parameterize ([read-accept-reader #f])
-         thunk))))
+         (thunk)))))
 
   ;; bundle-specifier: (listof symbol)
   ;; i.e. package + locale, (package-name [language] [country] [details ...])