diff --git a/docs/index.rst b/docs/index.rst
index bd87d736b9..57da8c2708 100644
--- a/docs/index.rst
+++ b/docs/index.rst
@@ -17,7 +17,7 @@ User documentation
 ------------------
 
 This is documentation for an administrator of a Xen system.  It is intended
-for someone who is not necesserily a developer, has installed Xen from their
+for someone who is not necessarily a developer, has installed Xen from their
 preferred distribution, and is attempting to run virtual machines and
 configure the system.