diff --git a/fdroidserver/common.py b/fdroidserver/common.py
index 5a92fba5..d83ac779 100644
--- a/fdroidserver/common.py
+++ b/fdroidserver/common.py
@@ -476,7 +476,7 @@ def parse_human_readable_size(size):
             raise ValueError(_('Could not parse size "{size}", wrong type "{type}"')
                              .format(size=size, type=type(size)))
         s = size.lower().replace(' ', '')
-        m = re.match(r'^(?P<value>[0-9][0-9.]+) *(?P<unit>' + r'|'.join(units.keys()) + r')$', s)
+        m = re.match(r'^(?P<value>[0-9][0-9.]*) *(?P<unit>' + r'|'.join(units.keys()) + r')$', s)
         if not m:
             raise ValueError(_('Not a valid size definition: "{}"').format(size))
         return int(float(m.group("value")) * units[m.group("unit")])
diff --git a/tests/common.TestCase b/tests/common.TestCase
index ad6e1ea4..ca733398 100755
--- a/tests/common.TestCase
+++ b/tests/common.TestCase
@@ -73,6 +73,7 @@ class CommonTest(unittest.TestCase):
             ('59kb', 59000),
             ('343.1 mb', 343100000),
             ('99.9GiB', 107266808217),
+            ('1MB', 1000000),
         ):
             self.assertEqual(fdroidserver.common.parse_human_readable_size(k), v)
         for v in ((12, 123), '0xfff', [], None, '12,123', '123GG', '982374bb', self):