--- a/data/devhelp.schemas.in	2010-10-22 22:36:22.000000000 +0200
+++ b/data/devhelp.schemas.in	2010-10-22 22:36:30.000000000 +0200
@@ -132,7 +132,7 @@
       <owner>devhelp</owner>
       <type>list</type>
       <list_type>string</list_type>
-      <default></default>
+      <default>[]</default>
       <locale name="C">
          <short>Books disabled</short>
          <long>List of books disabled by the user.</long>