diff --git a/Documentation/vm/00-INDEX b/Documentation/vm/00-INDEX
index 2f77ced..f80a449 100644
--- a/Documentation/vm/00-INDEX
+++ b/Documentation/vm/00-INDEX
@@ -6,6 +6,8 @@
 	- various information on memory balancing.
 hugetlbpage.txt
 	- a brief summary of hugetlbpage support in the Linux kernel.
+ksm.txt
+	- how to use the Kernel Samepage Merging feature.
 locking
 	- info on how locking and synchronization is done in the Linux vm code.
 numa