diff --git a/site/content/docs/commands/completion.en.md b/site/content/docs/commands/completion.en.md
index df888476358..a5677578087 100644
--- a/site/content/docs/commands/completion.en.md
+++ b/site/content/docs/commands/completion.en.md
@@ -33,6 +33,6 @@ $ sudo mv copilot.sh /etc/bash_completion.d/copilot
 ```
 Install fish completion on linux
 ```console
-$ source <(copilot completion fish)
+$ source (copilot completion fish | psub)
 $ copilot completion fish > ~/.config/fish/completions/copilot.fish
 ```