diff --git a/Library/Homebrew/cli/named_args.rb b/Library/Homebrew/cli/named_args.rb
index 80116b339a..d40e8f2836 100644
--- a/Library/Homebrew/cli/named_args.rb
+++ b/Library/Homebrew/cli/named_args.rb
@@ -209,8 +209,8 @@ module Homebrew
       end
 
       sig { returns(T::Array[Keg]) }
-      def to_kegs
-        @to_kegs ||= begin
+      def to_keg
+        @to_keg ||= begin
           to_formulae_and_casks(only: :formula, method: :keg).freeze
         rescue NoSuchKegError => e
           if (reason = MissingFormula.suggest_command(e.name, "uninstall"))
diff --git a/Library/Homebrew/cmd/list.rb b/Library/Homebrew/cmd/list.rb
index 4132d9bf16..60e4d8af5b 100644
--- a/Library/Homebrew/cmd/list.rb
+++ b/Library/Homebrew/cmd/list.rb
@@ -129,9 +129,9 @@ module Homebrew
         safe_system "ls", *ls_args, Cask::Caskroom.path
       end
     elsif args.verbose? || !$stdout.tty?
-      system_command! "find", args: args.named.to_kegs.map(&:to_s) + %w[-not -type d -print], print_stdout: true
+      system_command! "find", args: args.named.to_keg.map(&:to_s) + %w[-not -type d -print], print_stdout: true
     else
-      args.named.to_kegs.each { |keg| PrettyListing.new keg }
+      args.named.to_keg.each { |keg| PrettyListing.new keg }
     end
   end
 
diff --git a/Library/Homebrew/cmd/unlink.rb b/Library/Homebrew/cmd/unlink.rb
index fd8bf4ebf8..71258007ea 100644
--- a/Library/Homebrew/cmd/unlink.rb
+++ b/Library/Homebrew/cmd/unlink.rb
@@ -31,7 +31,7 @@ module Homebrew
 
     options = { dry_run: args.dry_run?, verbose: args.verbose? }
 
-    args.named.to_kegs.each do |keg|
+    args.named.to_keg.each do |keg|
       if args.dry_run?
         puts "Would remove:"
         keg.unlink(**options)
diff --git a/Library/Homebrew/dev-cmd/linkage.rb b/Library/Homebrew/dev-cmd/linkage.rb
index d907aee83f..bc0bd382e1 100644
--- a/Library/Homebrew/dev-cmd/linkage.rb
+++ b/Library/Homebrew/dev-cmd/linkage.rb
@@ -35,10 +35,10 @@ module Homebrew
     args = linkage_args.parse
 
     CacheStoreDatabase.use(:linkage) do |db|
-      kegs = if args.named.to_kegs.empty?
+      kegs = if args.named.to_keg.empty?
         Formula.installed.map(&:any_installed_keg).reject(&:nil?)
       else
-        args.named.to_kegs
+        args.named.to_keg
       end
       kegs.each do |keg|
         ohai "Checking #{keg.name} linkage" if kegs.size > 1