diff --git a/lib/irb.rb b/lib/irb.rb
index f0bbb3cc38..ed2b336b30 100644
--- a/lib/irb.rb
+++ b/lib/irb.rb
@@ -11,17 +11,17 @@
 #
 require "ripper"
 
-require "irb/init"
-require "irb/context"
-require "irb/extend-command"
+require_relative "irb/init"
+require_relative "irb/context"
+require_relative "irb/extend-command"
 
-require "irb/ruby-lex"
-require "irb/input-method"
-require "irb/locale"
-require "irb/color"
+require_relative "irb/ruby-lex"
+require_relative "irb/input-method"
+require_relative "irb/locale"
+require_relative "irb/color"
 
-require "irb/version"
-require "irb/easter-egg"
+require_relative "irb/version"
+require_relative "irb/easter-egg"
 
 # IRB stands for "interactive Ruby" and is a tool to interactively execute Ruby
 # expressions read from the standard input.
diff --git a/lib/irb/xmp.rb b/lib/irb/xmp.rb
index 60cf3b4e4d..88cbd88525 100644
--- a/lib/irb/xmp.rb
+++ b/lib/irb/xmp.rb
@@ -10,7 +10,7 @@
 #
 #
 
-require "irb"
+require_relative "../irb"
 require_relative "frame"
 
 # An example printer for irb.