diff --git a/test/ruby/test_autoload.rb b/test/ruby/test_autoload.rb
index ed0a4763aa..9e86b0722c 100644
--- a/test/ruby/test_autoload.rb
+++ b/test/ruby/test_autoload.rb
@@ -73,6 +73,9 @@ p Foo::Bar
   end
 
   def test_threaded_accessing_constant
+    # Suppress "warning: loading in progress, circular require considered harmful"
+    old_verbose = $VERBOSE
+    $VERBOSE = false
     Tempfile.create(['autoload', '.rb']) {|file|
       file.puts 'sleep 0.5; class AutoloadTest; X = 1; end'
       file.close
@@ -87,6 +90,8 @@ p Foo::Bar
         remove_autoload_constant
       end
     }
+  ensure
+    $VERBOSE = old_verbose
   end
 
   def test_threaded_accessing_inner_constant