diff --git a/lib/irb/ext/save-history.rb b/lib/irb/ext/save-history.rb
index 3a0703a72c..7ba12378c7 100644
--- a/lib/irb/ext/save-history.rb
+++ b/lib/irb/ext/save-history.rb
@@ -9,8 +9,6 @@
 #
 #
 
-require "readline"
-
 module IRB
   module HistorySavingAbility # :nodoc:
   end