diff --git a/cftime/_cftime.pyx b/cftime/_cftime.pyx
index 046af25a..c46251d4 100644
--- a/cftime/_cftime.pyx
+++ b/cftime/_cftime.pyx
@@ -43,7 +43,7 @@ cdef int[13] _spm_366day = [0, 31, 60, 91, 121, 152, 182, 213, 244, 274, 305, 33
 _rop_lookup = {Py_LT: '__gt__', Py_LE: '__ge__', Py_EQ: '__eq__',
                Py_GT: '__lt__', Py_GE: '__le__', Py_NE: '__ne__'}
 
-__version__ = '1.0.4'
+__version__ = '1.0.4.1'
 
 # Adapted from http://delete.me.uk/2005/03/iso8601.html
 # Note: This regex ensures that all ISO8601 timezone formats are accepted - but, due to legacy support for other timestrings, not all incorrect formats can be rejected.
@@ -183,7 +183,7 @@ def date2num(dates,units,calendar='standard'):
                 ismasked = True
             times = []
             for date in dates.flat:
-                if getattr(date, 'tzinfo') is not None:
+                if getattr(date, 'tzinfo',None) is not None:
                     date = date.replace(tzinfo=None) - date.utcoffset()
 
                 if ismasked and not date:
diff --git a/setup.py b/setup.py
index c8c2fb80..532754d0 100644
--- a/setup.py
+++ b/setup.py
@@ -119,4 +119,4 @@ def description():
         'Programming Language :: Python :: 3.6',
         'Programming Language :: Python :: 3.7',
         'Topic :: Scientific/Engineering',
-        'License :: OSI Approved'])
+        'License :: OSI Approved :: GNU General Public License V3 (GPLV3)'])
diff --git a/test/test_cftime.py b/test/test_cftime.py
index 9b48abef..c978cb92 100644
--- a/test/test_cftime.py
+++ b/test/test_cftime.py
@@ -711,7 +711,10 @@ def test_tz_naive(self):
         assert(cftime.date2num(cftime.datetime(1, 12, 1, 0, 0, 0, 0, -1, 1), units='days since 01-01-01',calendar='noleap')  == 334.0)
         assert(cftime.date2num(cftime.num2date(1.0,units='days since 01-01-01',calendar='noleap'),units='days since 01-01-01',calendar='noleap') == 1.0)
         assert(cftime.date2num(cftime.DatetimeNoLeap(1980, 1, 1, 0, 0, 0, 0, 6, 1),'days since 1970-01-01','noleap') == 3650.0)
-
+        # issue #126
+        d = cftime.DatetimeProlepticGregorian(1, 1, 1)
+        assert(cftime.date2num(d, 'days since 0001-01-01',\
+            'proleptic_gregorian') == 0.0)
 
 class TestDate2index(unittest.TestCase):