diff --git a/lib/isc/include/isc/app.h b/lib/isc/include/isc/app.h
index f20f604639..f93f9fcdb8 100644
--- a/lib/isc/include/isc/app.h
+++ b/lib/isc/include/isc/app.h
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: app.h,v 1.9 2009/09/01 00:22:28 jinmei Exp $ */
+/* $Id: app.h,v 1.10 2009/09/02 18:38:40 jinmei Exp $ */
 
 #ifndef ISC_APP_H
 #define ISC_APP_H 1
@@ -123,10 +123,10 @@ typedef struct isc_appmethods {
  * This structure is actually just the common prefix of an application context
  * implementation's version of an isc_appctx_t.
  * \brief
- * Direct use of this structure by clients is forbidden.  mctx implementations
+ * Direct use of this structure by clients is forbidden.  app implementations
  * may change the structure.  'magic' must be ISCAPI_APPCTX_MAGIC for any
  * of the isc_app_ routines to work.  app implementations must maintain
- * all app socket invariants.
+ * all app context invariants.
  */
 struct isc_appctx {
 	unsigned int		impmagic;
diff --git a/lib/isc/include/isc/task.h b/lib/isc/include/isc/task.h
index 2fd838f45e..2fe99c4752 100644
--- a/lib/isc/include/isc/task.h
+++ b/lib/isc/include/isc/task.h
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: task.h,v 1.64 2009/09/01 00:22:28 jinmei Exp $ */
+/* $Id: task.h,v 1.65 2009/09/02 18:38:40 jinmei Exp $ */
 
 #ifndef ISC_TASK_H
 #define ISC_TASK_H 1
@@ -131,7 +131,7 @@ typedef struct isc_taskmethods {
  * This structure is actually just the common prefix of a task manager
  * object implementation's version of an isc_taskmgr_t.
  * \brief
- * Direct use of this structure by clients is forbidden.  mctx implementations
+ * Direct use of this structure by clients is forbidden.  task implementations
  * may change the structure.  'magic' must be ISCAPI_TASKMGR_MAGIC for any
  * of the isc_task_ routines to work.  task implementations must maintain
  * all task invariants.
diff --git a/lib/isc/include/isc/timer.h b/lib/isc/include/isc/timer.h
index 583dd9624e..c50b82c78d 100644
--- a/lib/isc/include/isc/timer.h
+++ b/lib/isc/include/isc/timer.h
@@ -15,7 +15,7 @@
  * PERFORMANCE OF THIS SOFTWARE.
  */
 
-/* $Id: timer.h,v 1.41 2009/09/01 00:22:28 jinmei Exp $ */
+/* $Id: timer.h,v 1.42 2009/09/02 18:38:40 jinmei Exp $ */
 
 #ifndef ISC_TIMER_H
 #define ISC_TIMER_H 1
@@ -129,7 +129,7 @@ typedef struct {
  * This structure is actually just the common prefix of a timer manager
  * object implementation's version of an isc_timermgr_t.
  * \brief
- * Direct use of this structure by clients is forbidden.  mctx implementations
+ * Direct use of this structure by clients is forbidden.  timer implementations
  * may change the structure.  'magic' must be ISCAPI_TIMERMGR_MAGIC for any
  * of the isc_timer_ routines to work.  timer implementations must maintain
  * all timer invariants.