diff --git a/README.md b/README.md
index 0813fd0..7b9d82d 100644
--- a/README.md
+++ b/README.md
@@ -78,6 +78,10 @@ cabal new-install cabal-install
 Generally this is meant to be used with [`cabal-install`](https://hackage.haskell.org/package/cabal-install), which
 handles your haskell packages and can demand that [a specific version](https://cabal.readthedocs.io/en/latest/nix-local-build.html#cfg-flag---with-compiler)  of `ghc` is available, which `ghcup` can do.
 
+### Manpages
+
+For man pages to work you need [man-db](http://man-db.nongnu.org/) as your `man` provider, then issue `man ghc`. Manpages only work for the currently set ghc.
+
 ## Design goals
 
 1. simplicity