diff --git a/README.md b/README.md
index 27ef24f..e33ffb6 100644
--- a/README.md
+++ b/README.md
@@ -7,7 +7,7 @@ All of my configuration files -- typically dot variety, but might be other files
 Generate `~/.ssh/allowed_signers` file:
 
 ```sh
-echo "$(git config --get user.email) namespaces=\"git\" $(cat PATH_TO_PUBLIC_KEY)" >> ~/.ssh/allowed_signers
+echo "$(git config --get user.email) namespaces=\"git\" $(eval echo $(git config --get user.signingkey) | xargs cat)" >> ~/.ssh/allowed_signers
 ```
 
 ## Color schemes