diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index ad9e4fa08f..bd92634785 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -3005,8 +3005,12 @@ End
     # we don't know if other platforms have a real posix_fadvise()
     with_pipe do |r,w|
       # Linux 2.6.15 and earlier returned EINVAL instead of ESPIPE
-      assert_raise(Errno::ESPIPE, Errno::EINVAL) { r.advise(:willneed) }
-      assert_raise(Errno::ESPIPE, Errno::EINVAL) { w.advise(:willneed) }
+      assert_raise(Errno::ESPIPE, Errno::EINVAL) {
+        r.advise(:willneed) or skip "fadvice(2) is not implemented"
+      }
+      assert_raise(Errno::ESPIPE, Errno::EINVAL) {
+        w.advise(:willneed) or skip "fadvice(2) is not implemented"
+      }
     end
   end if /linux/ =~ RUBY_PLATFORM