diff -r cf5b910ac4c8 Lib/subprocess.py
--- a/Lib/subprocess.py	Sat Nov 15 10:58:58 2014 -0800
+++ b/Lib/subprocess.py	Sat Nov 15 16:41:04 2014 -0500
@@ -1453,7 +1453,7 @@
                                 err_msg += ': ' + repr(cwd)
                             else:
                                 err_msg += ': ' + repr(orig_executable)
-                    raise child_exception_type(errno_num, err_msg)
+                    raise child_exception_type(errno_num, err_msg, args[0])
                 raise child_exception_type(err_msg)
 
 
diff -r cf5b910ac4c8 Lib/test/test_subprocess.py
--- a/Lib/test/test_subprocess.py	Sat Nov 15 10:58:58 2014 -0800
+++ b/Lib/test/test_subprocess.py	Sat Nov 15 16:41:04 2014 -0500
@@ -2521,6 +2521,11 @@
                                   stderr=subprocess.PIPE) as proc:
                 pass
 
+    def test_file_not_found_includes_filename(self):
+        with self.assertRaises(FileNotFoundError) as c:
+            subprocess.call(['nonexistent_binary', 'with', 'some', 'args'])
+        self.assertEqual(c.exception.filename, 'nonexistent_binary')
+
 
 def test_main():
     unit_tests = (ProcessTestCase,