diff --git a/src/future/utils/surrogateescape.py b/src/future/utils/surrogateescape.py
index 398c3531..78ac11cb 100644
--- a/src/future/utils/surrogateescape.py
+++ b/src/future/utils/surrogateescape.py
@@ -83,7 +83,7 @@ def replace_surrogate_encode(mystring):
         # The following magic comes from Py3.3's Python/codecs.c file:
         if not 0xD800 <= code <= 0xDCFF:
             # Not a surrogate. Fail with the original exception.
-            raise exc
+            raise NotASurrogateError
         # mybytes = [0xe0 | (code >> 12),
         #            0x80 | ((code >> 6) & 0x3f),
         #            0x80 | (code & 0x3f)]
diff --git a/tests/test_future/test_surrogateescape.py b/tests/test_future/test_surrogateescape.py
index 0057ba36..7789ce9d 100644
--- a/tests/test_future/test_surrogateescape.py
+++ b/tests/test_future/test_surrogateescape.py
@@ -33,6 +33,12 @@ def test_encode_ascii_surrogateescape(self):
         b = payload.encode('ascii', 'surrogateescape')
         self.assertEqual(b, b'cMO2c3RhbA\xc3\xa1=\n')
 
+    def test_encode_ascii_unicode(self):
+        """
+        Verify that exceptions are raised properly.
+        """
+        self.assertRaises(UnicodeEncodeError, u'\N{SNOWMAN}'.encode, 'US-ASCII', 'surrogateescape')
+
     @expectedFailurePY2
     def test_encode_ascii_surrogateescape_non_newstr(self):
         """