diff --git a/calendar/inc/hook_calendar_add_def_pref.inc.php b/calendar/inc/hook_calendar_add_def_pref.inc.php
index d56895c909..8f828027ce 100755
--- a/calendar/inc/hook_calendar_add_def_pref.inc.php
+++ b/calendar/inc/hook_calendar_add_def_pref.inc.php
@@ -3,7 +3,7 @@
   $pref->change("calendar","weekstarts","Monday");
   $pref->change("calendar","workdaystarts","9");
   $pref->change("calendar","workdayends","17");
-  $pref->change("calendar","defaultcalendar","index.php");
+  $pref->change("common","defaultcalendar","index.php");
   $pref->change("calendar","defaultfilter","all");
   $pref->change("calendar","mainscreen_showevents","Y");
 ?>