diff --git a/README.md b/README.md
index 5bf1f39..ff3b69c 100644
--- a/README.md
+++ b/README.md
@@ -23,6 +23,7 @@ Finished posts are in `blog/`; Drafts are in `blog/.drafts/`. Use `./lb delete`
 ## Installation
 
 + GNU sed is required.
++ Your `$EDITOR` variable should be set to your preferred text editor.
 + Be sure that you own or have writing privileges in the given directory, so the script can create the required directory structure.
 + Download the `lb` script and put it in your website's home directory. The expectation is that your rolling blog file and RSS feed will be there as well.
 + Open the script and change the first few variables to match the files you use in your website.