diff --git a/README.md b/README.md
index 0d44264..ae81dd8 100644
--- a/README.md
+++ b/README.md
@@ -71,7 +71,9 @@ There are two (?) theses about Nix. One is https://edolstra.github.io/pubs/phd-t
 ### Search for options
 
 * https://search.nixos.org/options?channel=23.05
+  * Or `man configuration.nix`
 * https://mipmip.github.io/home-manager-option-search
+  * Or `man home-configuration.nix`
 
 ## TODOS