1 files changed, 1 insertions, 0 deletions
diff --git a/test/pathname/test_pathname.rb b/test/pathname/test_pathname.rb
index 235d0fb2ee..86b85b894a 100644
--- a/test/pathname/test_pathname.rb
+++ b/test/pathname/test_pathname.rb
@@ -995,6 +995,7 @@ class TestPathname < Test::Unit::TestCase
     skip "Unix file owner test" if DOSISH
     with_tmpchdir('rubytest-pathname') {|dir|
       open("f", "w") {|f| f.write "abc" }
+      File.chown(-1, Process.gid, "f")
       assert_equal(true, Pathname("f").grpowned?)
     }
   end