diff --git a/Install-unix.txt b/Install-unix.txt
index cc999c4..6b8579b 100644
--- a/Install-unix.txt
+++ b/Install-unix.txt
@@ -64,7 +64,8 @@
JBIG --with-jbig= no
JPEG v1 --with-jpeg=yes yes
JPEG-2000 --with-jp2=yes yes
- LCMS --with-lcms=yes yes
+ LCMS v1 --with-lcms=yes yes
+ LCMS v2 --with-lcms2=yes yes
LQR --with-lqr=yes no
Magick++ --with-magick-plus-plus=yes yes
OpenEXR --with-openexr=yes yes
@@ -399,7 +400,10 @@
disable JPEG v2 support.
--without-lcms
- disable LCMS support.
+ disable lcms (v1.1X) support
+
+ --without-lcms2
+ disable lcms (v2.X) support
--without-lzma
disable LZMA support.