diff --git a/lib/irb/completion.rb b/lib/irb/completion.rb
index 319cb84303..390e7254dd 100644
--- a/lib/irb/completion.rb
+++ b/lib/irb/completion.rb
@@ -1,6 +1,6 @@
 # frozen_string_literal: false
 #
-#   irb/completor.rb -
+#   irb/completion.rb -
 #   	$Release Version: 0.9$
 #   	$Revision$
 #   	by Keiju ISHITSUKA(keiju@ishitsuka.com)