diff --git a/lib/reline.rb b/lib/reline.rb
index 2f32f4c97c..8e247a89cc 100644
--- a/lib/reline.rb
+++ b/lib/reline.rb
@@ -342,7 +342,7 @@ module Reline
   def_single_delegators :core, :vi_editing_mode, :emacs_editing_mode
   def_single_delegators :core, :readline
   def_single_delegators :core, :readline
-  def_instance_delegators :core, :readline
+  def_instance_delegators self, :readline
 
 
   #--------------------------------------------------------