diff --git a/lib/reline/line_editor.rb b/lib/reline/line_editor.rb
index 10ff766dcc..71b56b4c3b 100644
--- a/lib/reline/line_editor.rb
+++ b/lib/reline/line_editor.rb
@@ -2529,6 +2529,7 @@ def finish
       @rest_height += 1
     end
   end
+  alias_method :kill_line, :ed_kill_line
 
   private def em_kill_line(key)
     if @byte_pointer > 0
@@ -2539,7 +2540,7 @@ def finish
       @cursor = 0
     end
   end
-  alias_method :kill_line, :em_kill_line
+  alias_method :unix_line_discard, :em_kill_line
   alias_method :vi_kill_line_prev, :em_kill_line
 
   private def em_delete(key)