diff --git a/README.md b/README.md
index d86c9bf..5ad32ea 100644
--- a/README.md
+++ b/README.md
@@ -78,10 +78,13 @@ dependencies. (Note that on most systems, `pip3` invokes the Python 3.x version,
 the Python 2.7 version; Python 2.7 is still supported, but not recommended because it's nearing
 obsolescence.)
 
-```
+```console
 # Install latest release from PyPI
 $ pip3 install python-vipaccess
 
+# Optional - install the version which prints out a QR code (instead of using qrencode)
+$ pip3 install 'python-vipaccess[qr]'
+
 # Install latest development version from GitHub
 $ pip3 install https://github.com/dlenski/python-vipaccess/archive/HEAD.zip
 ```