diff --git a/docs/book/src/quick-start.md b/docs/book/src/quick-start.md
index 010f4ecbabf..09c6b08d968 100644
--- a/docs/book/src/quick-start.md
+++ b/docs/book/src/quick-start.md
@@ -45,7 +45,7 @@ You can work with a master snapshot by installing from `https://go.kubebuilder.i
 <aside class="note">
 <h1>Enabling shell autocompletion</h1>
 
-Kubebuilder provides autocompletion support for Bash and Zsh via the command `kubebuilder completion <bash|zsh>`, which can save you a lot of typing. For further information see the [completion](./reference/completion.md) document.
+Kubebuilder provides autocompletion support via the command `kubebuilder completion <bash|fish|powershell|zsh>`, which can save you a lot of typing. For further information see the [completion](./reference/completion.md) document.
 
 </aside>
 
diff --git a/docs/book/src/reference/completion.md b/docs/book/src/reference/completion.md
index 4e15dca47c6..4b94060e804 100644
--- a/docs/book/src/reference/completion.md
+++ b/docs/book/src/reference/completion.md
@@ -1,5 +1,5 @@
 # Enabling shell autocompletion
-The Kubebuilder completion script can be generated with the command `kubebuilder completion [bash|zsh|powershell]`. 
+The Kubebuilder completion script can be generated with the command `kubebuilder completion [bash|fish|powershell|zsh]`. 
 Note that sourcing the completion script in your shell enables Kubebuilder autocompletion. 
 
 <aside class="note">