diff --git a/Preparing-your-system-to-use-Stackage2.md b/Preparing-your-system-to-use-Stackage2.md
index e4de1dc..73d212c 100644
--- a/Preparing-your-system-to-use-Stackage2.md
+++ b/Preparing-your-system-to-use-Stackage2.md
@@ -7,7 +7,7 @@
   * [Windows](#windows)
 * [Using on existing Haskell setup](#using-on-existing-haskell-setup) (GHC, Cabal already installed)
   * [Using a Stackage snapshot](#using-a-stackage-snapshot)
-  * [Using a cabal.config file (simplest usage)](using-a-cabalconfig-file-simplest-usage)
+  * [Using a cabal.config file (simplest usage)](#using-a-cabalconfig-file-simplest-usage)
 * [Detailed topics](#detailed-topics)
   * [Snapshot types](#snapshot-types)
   * [Haskell Platform vs raw tools](#haskell-platform-vs-raw-tools)