diff --git a/completions/bash/brew b/completions/bash/brew
index 3419efd320..dcf076a250 100644
--- a/completions/bash/brew
+++ b/completions/bash/brew
@@ -1552,6 +1552,7 @@ _brew_pr_automerge() {
       --with-label
       --without-approval
       --without-labels
+      --workflow
       "
       return
       ;;
diff --git a/completions/fish/brew.fish b/completions/fish/brew.fish
index aecc1cd8b7..4aa29c4e02 100644
--- a/completions/fish/brew.fish
+++ b/completions/fish/brew.fish
@@ -1085,6 +1085,7 @@ __fish_brew_complete_arg 'pr-automerge' -l verbose -d 'Make some output more ver
 __fish_brew_complete_arg 'pr-automerge' -l with-label -d 'Pull requests must have this label'
 __fish_brew_complete_arg 'pr-automerge' -l without-approval -d 'Pull requests do not require approval to be merged'
 __fish_brew_complete_arg 'pr-automerge' -l without-labels -d 'Pull requests must not have these labels (default: `do not merge`, `new formula`, `automerge-skip`)'
+__fish_brew_complete_arg 'pr-automerge' -l workflow -d 'Workflow file to use with `brew pr-publish`'
 
 
 __fish_brew_complete_cmd 'pr-publish' 'Publish bottles for a pull request with GitHub Actions'
diff --git a/completions/zsh/_brew b/completions/zsh/_brew
index cbaef4b70d..6ef8bf878c 100644
--- a/completions/zsh/_brew
+++ b/completions/zsh/_brew
@@ -1326,7 +1326,8 @@ _brew_pr_automerge() {
     '--verbose[Make some output more verbose]' \
     '--with-label[Pull requests must have this label]' \
     '--without-approval[Pull requests do not require approval to be merged]' \
-    '--without-labels[Pull requests must not have these labels (default: `do not merge`, `new formula`, `automerge-skip`)]'
+    '--without-labels[Pull requests must not have these labels (default: `do not merge`, `new formula`, `automerge-skip`)]' \
+    '--workflow[Workflow file to use with `brew pr-publish`]'
 }
 
 # brew pr-publish
diff --git a/docs/Manpage.md b/docs/Manpage.md
index 3943a0575d..fefb74d3c1 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -1247,6 +1247,8 @@ Find pull requests that can be automatically merged using `brew pr-publish`.
 
 * `--tap`:
   Target tap repository (default: `homebrew/core`).
+* `--workflow`:
+  Workflow file to use with `brew pr-publish`.
 * `--with-label`:
   Pull requests must have this label.
 * `--without-labels`:
diff --git a/manpages/brew.1 b/manpages/brew.1
index ea4b992fd1..daf8a98ff4 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -1772,6 +1772,10 @@ Find pull requests that can be automatically merged using \fBbrew pr\-publish\fR
 Target tap repository (default: \fBhomebrew/core\fR)\.
 .
 .TP
+\fB\-\-workflow\fR
+Workflow file to use with \fBbrew pr\-publish\fR\.
+.
+.TP
 \fB\-\-with\-label\fR
 Pull requests must have this label\.
 .