diff --git a/Preparing-your-system-to-use-Stackage.md b/Preparing-your-system-to-use-Stackage.md
index a988383..eb87c15 100644
--- a/Preparing-your-system-to-use-Stackage.md
+++ b/Preparing-your-system-to-use-Stackage.md
@@ -45,7 +45,8 @@ steps are provided here for completeness.
 ## Mac OS X
 
 It is highly recommended to install GHC via the Haskell Platform. Therefore,
-you should also use a Haskell Platform snapshot.
+you should also use a Haskell Platform snapshot. (These instructions will use
+such a snapshot automatically.)
 
 1. [Install Haskell Platform for Mac](https://www.haskell.org/platform/mac.html)
 2. Modify your PATH to include `$HOME/Library/Haskell/bin`
@@ -56,7 +57,8 @@ you should also use a Haskell Platform snapshot.
 ## Windows
 
 It is highly recommended to install GHC via the Haskell Platform. Therefore,
-you should also use a Haskell Platform snapshot.
+you should also use a Haskell Platform snapshot. (These instructions will use
+such a snapshot automatically.)
 
 1. [Install Haskell Platform for Windows](https://www.haskell.org/platform/windows.html)
 2. Modify your PATH to include `%APPDATA%\cabal\bin`