diff --git a/Library/Homebrew/cleanup.rb b/Library/Homebrew/cleanup.rb
index 3401612043..960bcb8b7b 100644
--- a/Library/Homebrew/cleanup.rb
+++ b/Library/Homebrew/cleanup.rb
@@ -1,6 +1,5 @@
 require "utils/bottles"
 require "formula"
-require "thread"
 
 module Homebrew
   module Cleanup
diff --git a/Library/Homebrew/readall.rb b/Library/Homebrew/readall.rb
index 5f4fd947c6..1b6ae016e0 100644
--- a/Library/Homebrew/readall.rb
+++ b/Library/Homebrew/readall.rb
@@ -1,6 +1,5 @@
 require "formula"
 require "tap"
-require "thread"
 
 module Readall
   class << self