1 files changed, 2 insertions, 1 deletions

diff --git a/lib/optparse/date.rb b/lib/optparse/date.rb
index d680559f37..7bbf12b77f 100644
--- a/lib/optparse/date.rb
+++ b/lib/optparse/date.rb
@@ -1,4 +1,5 @@
-require 'optparse'
+# frozen_string_literal: false
+require_relative '../optparse'
 require 'date'
 
 OptionParser.accept(DateTime) do |s,|