diff --git a/doc/site/cli/modules/timer/index.markdown b/doc/site/cli/modules/timer/index.markdown
index 64bdaff4..2f7c5808 100644
--- a/doc/site/cli/modules/timer/index.markdown
+++ b/doc/site/cli/modules/timer/index.markdown
@@ -1,5 +1,7 @@
 ^title Module "timer"
 
-**TODO**
+This module provides a mechanism to suspend the current fiber for a given period of time either as a simple delay or to allow other operations to be performed asynchronously in the meantime.
+
+It contains a single class:
 
 * [Timer](timer.html)