diff --git a/doc/ChangeLog b/doc/ChangeLog
index 145f5e574d..eb05e3aa94 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,7 @@
+2009-08-26	Sebastian Huber <sebastian.huber@embedded-brains.de>
+
+	* user/conf.t: Change stack allocator signature.
+
 2009-08-22	Roxana Leontie <roxana.leontie@gmail.com>
 
 	* bsp_howto/framebuffer.t: documented the improvements made to
diff --git a/doc/user/conf.t b/doc/user/conf.t
index 45ca399aca..b813b2b80d 100644
--- a/doc/user/conf.t
+++ b/doc/user/conf.t
@@ -928,7 +928,7 @@ typedef struct @{
   void                          (*idle_task)( void );
   uint32_t                        idle_task_stack_size;
   uint32_t                        interrupt_stack_size;
-  void *                        (*stack_allocate_hook)( uint32_t );
+  void *                        (*stack_allocate_hook)( size_t );
   void                          (*stack_free_hook)( void * );
   bool                            do_zero_of_workspace;
   uint32_t                        maximum_drivers;