diff --git a/Emacs-instructions.md b/Emacs-instructions.md
index caccc6f..efe60dd 100644
--- a/Emacs-instructions.md
+++ b/Emacs-instructions.md
@@ -39,6 +39,11 @@ Note! If you get `error in process filter: Attempt to shape unibyte text`, check
 ;; (46 . ".\\(?:\\(?:\\.[.<]\\)\\|[.=-]\\)")
 ```
 
+If you are using `projectile-ag` you might also face `error in process filter: Attempt to shape unibyte text`. To avoid this comment the following line from the above script:
+```elisp
+;; (94 . ".\\(?:=\\)")
+```
+
 If you're using the latest [railwaycat Mac port](https://github.com/railwaycat/homebrew-emacsmacport) of Emacs, you can instead use:
 
 ```elisp