diff -ru evolution-2.6.2.orig/calendar/gui/e-tasks.c evolution-2.6.2/calendar/gui/e-tasks.c
--- evolution-2.6.2.orig/calendar/gui/e-tasks.c	2006-05-03 16:01:45.000000000 +0200
+++ evolution-2.6.2/calendar/gui/e-tasks.c	2006-05-30 20:23:05.000000000 +0200
@@ -39,6 +39,7 @@
 #include "e-util/e-config-listener.h"
 #include "e-util/e-util-private.h"
 #include "shell/e-user-creatable-items-handler.h"
+#include "libedataserver/e-categories.h"
 #include <libedataserver/e-url.h>
 #include <libedataserver/e-categories.h>
 #include <libecal/e-cal-time-util.h>