diff --git a/Library/Homebrew/cmd/install.rb b/Library/Homebrew/cmd/install.rb
index 061d78ea23..0369d1d8ef 100644
--- a/Library/Homebrew/cmd/install.rb
+++ b/Library/Homebrew/cmd/install.rb
@@ -64,6 +64,9 @@ module Homebrew
         description: "Don't delete the temporary files created during installation."
       switch "--build-bottle",
         description: "Prepare the formula for eventual bottling during installation."
+      switch "--bottle-arch=",
+        description: "Optimise bottles for the given architecture rather than the oldest "\
+                     "architecture supported by the version of macOS the bottles are built on."
       switch :force,
         description: "Install without checking for previously installed keg-only or "\
                      "non-migrated versions."
diff --git a/docs/Manpage.md b/docs/Manpage.md
index 38adea590c..2810b35639 100644
--- a/docs/Manpage.md
+++ b/docs/Manpage.md
@@ -245,6 +245,8 @@ Unless `HOMEBREW_NO_INSTALL_CLEANUP` is set, `brew cleanup` will be run for the
   Don't delete the temporary files created during installation.
 * `--build-bottle`:
   Prepare the formula for eventual bottling during installation.
+* `--bottle-arch`:
+  Optimise bottles for the given architecture rather than the oldest architecture supported by the version of macOS the bottles are built on.
 * `--display-times`:
   Print install times for each formula at the end of the run.
 * `-i`, `--interactive`:
diff --git a/manpages/brew.1 b/manpages/brew.1
index da3320ded1..2c6cb8d9c7 100644
--- a/manpages/brew.1
+++ b/manpages/brew.1
@@ -315,6 +315,10 @@ Don\'t delete the temporary files created during installation\.
 Prepare the formula for eventual bottling during installation\.
 .
 .TP
+\fB\-\-bottle\-arch\fR
+Optimise bottles for the given architecture rather than the oldest architecture supported by the version of macOS the bottles are built on\.
+.
+.TP
 \fB\-\-display\-times\fR
 Print install times for each formula at the end of the run\.
 .