diff --git a/test/webrick/test_filehandler.rb b/test/webrick/test_filehandler.rb
index 9dfd9c28ff..7ab86a8fb7 100644
--- a/test/webrick/test_filehandler.rb
+++ b/test/webrick/test_filehandler.rb
@@ -22,11 +22,11 @@ class WEBrick::TestFileHandler < Test::Unit::TestCase
   end
 
   def make_range_request(range_spec)
-    msg = <<-_end_of_request_
+    msg = <<-END_OF_REQUEST
       GET / HTTP/1.0
       Range: #{range_spec}
 
-    _end_of_request_
+    END_OF_REQUEST
     return StringIO.new(msg.gsub(/^ {6}/, ""))
   end