diff --git a/readme.md b/readme.md
index 78cc2dc..d7ac213 100644
--- a/readme.md
+++ b/readme.md
@@ -269,7 +269,7 @@ You also need to have the following installed for h-m-m to work:
 * php
   * either php 8, or
   * older versions of php along with the `mbstring` package (e.g., `php7.2-mbstring`)
-* `xclip`, `xsel`, or `wl-clipboard` in Linux. (Windows and Mac don't need it)
+* `xclip`, `xsel`, `wl-clipboard`, or `klipper` in Linux. (Windows and Mac don't need it)
 
 After downloading or cloning, you can run `php h-m-m` in your terminal to run the program with a blank map or `php h-m-m filename` to open an existing file. If you don't already have a php interpreter installed, you would need to install it as well. Note: You don't need to set up a "web server" to run it because it's not a web application, but rather a terminal application that works like those written in Python, Bash, etc.