2 files changed, 11 insertions, 0 deletions
diff --git a/Library/Homebrew/cask/lib/hbc/cask.rb b/Library/Homebrew/cask/lib/hbc/cask.rb
index 27f8ae791..72a23066f 100644
--- a/Library/Homebrew/cask/lib/hbc/cask.rb
+++ b/Library/Homebrew/cask/lib/hbc/cask.rb
@@ -41,6 +41,14 @@ module Hbc
                           .reverse
     end
 
+    def full_name
+      if @tap.nil? || @tap == Hbc.default_tap
+        token
+      else
+        "#{@tap}/#{token}"
+      end
+    end
+
     def installed?
       !versions.empty?
     end
diff --git a/Library/Homebrew/cask/lib/hbc/cli/list.rb b/Library/Homebrew/cask/lib/hbc/cli/list.rb
index faa1160a1..32415af8a 100644
--- a/Library/Homebrew/cask/lib/hbc/cli/list.rb
+++ b/Library/Homebrew/cask/lib/hbc/cli/list.rb
@@ -3,6 +3,7 @@ module Hbc
     class List < AbstractCommand
       option "-1", :one, false
       option "--versions", :versions, false
+      option "--full-name", :full_name, false
 
       option "-l", (lambda do |*|
         one = true # rubocop:disable Lint/UselessAssignment
@@ -42,6 +43,8 @@ module Hbc
           puts installed_casks.map(&:to_s)
         elsif versions?
           puts installed_casks.map(&self.class.method(:format_versioned))
+        elsif full_name?
+          puts installed_casks.map(&:full_name).sort &tap_and_name_comparison
         elsif !installed_casks.empty?
           puts Formatter.columns(installed_casks.map(&:to_s))
         end