diff --git a/test/markup_test.rb b/test/markup_test.rb
index 4c8fdf45..3cc1b998 100644
--- a/test/markup_test.rb
+++ b/test/markup_test.rb
@@ -9,11 +9,10 @@
 require 'nokogiri/diff'
 
 def normalize_html(text)
-  text.strip!
-  text.gsub!(/\s\s+/,' ')
-  text.gsub!(/\p{Pi}|\p{Pf}|"/u,'"')
-  text.gsub!("\u2026",'...')
-  text
+  text.strip
+      .gsub(/\s\s+/,' ')
+      .gsub(/\p{Pi}|\p{Pf}|"/u,'"')
+      .gsub("\u2026",'...')
 end
 
 def assert_html_equal(expected, actual, msg = nil)