diff --git a/doc/ChangeLog b/doc/ChangeLog
index aeb07831c0..1ceb49bd57 100644
--- a/doc/ChangeLog
+++ b/doc/ChangeLog
@@ -1,3 +1,9 @@
+2010-01-11	Marc Pignat <marc.pignat@hevs.ch>
+
+	PR 1490/doc
+	* user/clock.t: Fix typo. rtems_clock_get_ticks_per_second not
+	rtems_clock_get_ticks_per_seconds.
+
 2009-12-17	Joel Sherrill <joel.sherrill@oarcorp.com>
 
 	* user/clock.t: Eliminate unused type rtems_clock_time_value.
diff --git a/doc/user/clock.t b/doc/user/clock.t
index 784992c7f1..988dd77856 100644
--- a/doc/user/clock.t
+++ b/doc/user/clock.t
@@ -545,7 +545,7 @@ system date and time to application specific specifications.
 @ifset is-C
 @findex rtems_clock_get_ticks_per_second
 @example
-rtems_interval rtems_clock_get_ticks_per_seconds(void);
+rtems_interval rtems_clock_get_ticks_per_second(void);
 @end example
 @end ifset