diff --git a/ChangeLog b/ChangeLog
index f13e4d9733..7bf970168c 100644
--- a/ChangeLog
+++ b/ChangeLog
@@ -1,3 +1,8 @@
+Sun Jun 14 06:24:57 2015  Benoit Daloze  <eregontp@gmail.com>
+
+	* test/ruby/test_io.rb: add test for IO.binread fd leak.
+	  See r50881.
+
 Sun Jun 14 05:23:51 2015  Benoit Daloze  <eregontp@gmail.com>
 
 	* io.c (rb_io_s_binread): close fd if seek offset is invalid.
diff --git a/test/ruby/test_io.rb b/test/ruby/test_io.rb
index 873da119be..9b3e80160d 100644
--- a/test/ruby/test_io.rb
+++ b/test/ruby/test_io.rb
@@ -2740,6 +2740,10 @@ End
     end
   end
 
+  def test_s_binread_does_not_leak_with_invalid_offset
+    assert_raise(Errno::EINVAL) { IO.binread(__FILE__, 0, -1) }
+  end
+
   def test_s_binwrite
     mkcdtmpdir do
       path = "test_s_binwrite"