--- a/contrib/gadict.el	Wed Mar 23 10:58:06 2016 +0200
+++ b/contrib/gadict.el	Wed Mar 23 10:58:30 2016 +0200
@@ -92,6 +92,7 @@
 (defvar-local gadict-tr nil
   "Translation markers as string separated by comma. Define own
   values in .dir-local.el or as -*- gadict-tr: \"...\" -*- file prelude")
+(put 'gadict-tr 'safe-local-variable 'string-or-null-p)
 
 (defun gadict-new-entry ()
   "Insert new entry template."