diff --git a/docs/guest-guide/x86/hypercall-abi.rst b/docs/guest-guide/x86/hypercall-abi.rst
index 83890e1cb613..8004122ca49d 100644
--- a/docs/guest-guide/x86/hypercall-abi.rst
+++ b/docs/guest-guide/x86/hypercall-abi.rst
@@ -79,7 +79,8 @@ Hypercall Page
 ==============
 
 The hypercall page is a page of guest RAM into which Xen will write suitable
-transfer stubs.
+transfer stubs.  It is intended as a convenience for guests, but use of the
+hypercall page is not mandatory for making hypercalls to Xen.
 
 Creating a hypercall page is an isolated operation from Xen's point of view.
 It is the guests responsibility to ensure that the hypercall page, once