diff --git a/doc_src/cmds/fish_prompt.rst b/doc_src/cmds/fish_prompt.rst
index 0e5367f1f..e8df810b7 100644
--- a/doc_src/cmds/fish_prompt.rst
+++ b/doc_src/cmds/fish_prompt.rst
@@ -33,7 +33,10 @@ A simple prompt:
 ::
 
     function fish_prompt -d "Write out the prompt"
-        printf '%s@%s%s%s%s> ' (whoami) (hostname | cut -d . -f 1) \
+        # This shows up as USER@HOST /home/user/ >, with the directory colored
+        # $USER and $hostname are set by fish, so you can just use them
+        # instead of using `whoami` and `hostname`
+        printf '%s@%s %s%s%s > ' $USER $hostname \
             (set_color $fish_color_cwd) (prompt_pwd) (set_color normal)
     end