diff --git a/test/Info.rb b/test/Info.rb
index 576d32d2e..4dac67e2b 100644
--- a/test/Info.rb
+++ b/test/Info.rb
@@ -224,9 +224,6 @@ def test_matte_color
     end
 
     def test_monitor
-      if RUBY_PLATFORM =~ /x64-mingw/
-        return
-      end
       assert_nothing_raised { @info.monitor = lambda {} }
       monitor = Proc.new do |mth, q, s|
         assert_equal("resize!", mth)