diff --git a/.tmux.conf.local b/.tmux.conf.local
index f44e59c..533fac9 100644
--- a/.tmux.conf.local
+++ b/.tmux.conf.local
@@ -235,7 +235,8 @@ tmux_conf_theme_clock_style='24'
 # in copy mode, copying selection also copies to the OS clipboard
 #   - true
 #   - false (default)
-# on macOS, this require installing reattach-to-user-namespace, see README.md
+# on macOS, this requires installing reattach-to-user-namespace, see README.md
+# on Linux, this requires xsel or xclip
 tmux_conf_copy_to_os_clipboard=false
 
 
diff --git a/README.md b/README.md
index 68b0976..f706a69 100644
--- a/README.md
+++ b/README.md
@@ -96,7 +96,7 @@ Features
  - configurable new windows and panes behavior (optionally retain current path)
  - SSH aware split pane (reconnects to remote server, experimental)
  - copy to OS clipboard (needs [`reattach-to-user-namespace`][reattach-to-user-namespace]
-   on macOS)
+   on macOS, `xsel` or `xclip` on Linux)
  - [Facebook PathPicker][] integration if available
  - [Urlview][] integration if available