diff --git a/samples/ffi/gettimeofday.rb b/samples/ffi/gettimeofday.rb
index 4193948ee8d..0e136f72c36 100644
--- a/samples/ffi/gettimeofday.rb
+++ b/samples/ffi/gettimeofday.rb
@@ -1,8 +1,12 @@
 require 'rubygems'
 require 'ffi'
 class Timeval < FFI::Struct
-#  layout :tv_sec => :ulong, :tv_usec => :ulong
-  layout :tv_sec, :ulong, 0, :tv_usec, :ulong, 4
+  rb_maj, rb_min, rb_micro = RUBY_VERSION.split('.')
+  if rb_maj.to_i >= 1 && rb_min.to_i >= 9 || RUBY_PLATFORM =~ /java/
+    layout :tv_sec => :ulong, :tv_usec => :ulong
+  else
+    layout :tv_sec, :ulong, 0, :tv_usec, :ulong, 4
+  end
 end
 module LibC
   extend FFI::Library