diff --git a/INSTALL b/INSTALL
index b8d2ea430374..58359da380aa 100644
--- a/INSTALL
+++ b/INSTALL
@@ -225,10 +225,6 @@ XEN_BUILD_TIME=hh:mm:ss
 SMBIOS_REL_DATE=mm/dd/yyyy
 VGABIOS_REL_DATE="dd Mon yyyy"
 
-The following variables can be used to tweak some aspects of the
-hypervisor build.
-lto=y
-
 During tools build external repos will be cloned into the source tree.
 This variable can be used to point to a different git binary to be used.
 GIT=