tests/test_pyderasn.py | 9 +++++++--

diff --git a/tests/test_pyderasn.py b/tests/test_pyderasn.py
index 376949698737d0149c61d468b605914f807e7a5e1c1957c7fbaf4eba47d0d849..b0c9a5c7145176beac49750ac09b5f8281b076c172ff1f6f4e252e5d4851a322 100644
--- a/tests/test_pyderasn.py
+++ b/tests/test_pyderasn.py
@@ -4495,8 +4495,13 @@             self.assertEqual(
                 mktime(obj.todatetime().timetuple()),
                 mktime(dt.timetuple()),
             )
-        elif not PY2:
-            self.assertEqual(obj.todatetime().timestamp(), dt.timestamp())
+        else:
+            try:
+                obj.todatetime().timestamp()
+            except:
+                pass
+            else:
+                self.assertEqual(obj.todatetime().timestamp(), dt.timestamp())
         self.assertEqual(obj.ber_encoded, not dered)
         self.assertEqual(obj.bered, not dered)
         self.assertEqual(obj.ber_raw, None if dered else data)