diff --git a/Library/Homebrew/cask/artifact/pkg.rb b/Library/Homebrew/cask/artifact/pkg.rb
index 924f731ae484f8..3ef8bd9fc8ee8d 100644
--- a/Library/Homebrew/cask/artifact/pkg.rb
+++ b/Library/Homebrew/cask/artifact/pkg.rb
@@ -18,7 +18,7 @@ class Pkg < AbstractArtifact
       attr_reader :path, :stanza_options
 
       def self.from_args(cask, path, **stanza_options)
-        stanza_options.assert_valid_keys!(:allow_untrusted, :choices)
+        stanza_options.assert_valid_keys!(:allow_untrusted, :choices, :target)
         new(cask, path, **stanza_options)
       end
 
@@ -54,7 +54,7 @@ def run_installer(command: nil, verbose: false, **_options)
 
         args = [
           "-pkg",    path,
-          "-target", "/"
+          "-target", stanza_options.fetch(:target, "/"),
         ]
         args << "-verboseR" if verbose
         args << "-allowUntrusted" if stanza_options.fetch(:allow_untrusted, false)