diff --git a/collects/drscheme/private/module-language.ss b/collects/drscheme/private/module-language.ss
index d3a14a1090..e550325243 100644
--- a/collects/drscheme/private/module-language.ss
+++ b/collects/drscheme/private/module-language.ss
@@ -78,7 +78,7 @@
       (define/override (default-settings)
         (let ([super-defaults (super default-settings)])
           (make-module-language-settings
-           #t 'write 'mixed-fraction-e #f #t 'none ;; simple settings defaults 
+           #t 'write 'mixed-fraction-e #f #t 'debug;; simple settings defaults 
            
            '(default)
            #()