diff --git a/test/ruby/test_pattern_matching.rb b/test/ruby/test_pattern_matching.rb
index 9153297d39..0af5e3ad97 100644
--- a/test/ruby/test_pattern_matching.rb
+++ b/test/ruby/test_pattern_matching.rb
@@ -1,6 +1,10 @@
 # frozen_string_literal: true
 require 'test/unit'
 
+verbose, $VERBOSE = $VERBOSE, nil # suppress "warning: Pattern matching is experimental, and the behavior may change in future versions of Ruby!"
+eval "#{<<~"begin;"}\n#{<<~'end;'}".gsub(/^.*# fix indent\n/, ''), binding, __FILE__, __LINE__+2
+begin;
+end # fix indent
 class TestPatternMatching < Test::Unit::TestCase
   class C
     class << self
@@ -1085,3 +1089,6 @@ END
     end
   end
 end
+begin # fix indent
+end;
+$VERBOSE = verbose