diff --git a/Emacs-instructions.md b/Emacs-instructions.md
index c3beda8..63ef13b 100644
--- a/Emacs-instructions.md
+++ b/Emacs-instructions.md
@@ -45,7 +45,9 @@ If you're using a modern version of emacs, you might have ligature support built
 (global-ligature-mode 't)
 ```
 
-This is generally the easiest solution, ~~but can only be used on macOS~~. Also tested on Linux, it works. 
+This is generally the easiest solution, ~~but can only be used on macOS~~. Also tested on Linux, it works. It works on Windows as well.
+
+One thing to be aware of is that not all modes where you want code ligatures may derive from `prog-mode`, so you may also want to call `ligature-set-ligatures` with other modes (e.g. `html-mode`).
 
 ### Using prettify-symbols