diff --git a/octodns/manager.py b/octodns/manager.py
index addcbe1..0560b43 100644
--- a/octodns/manager.py
+++ b/octodns/manager.py
@@ -387,7 +387,7 @@ class Manager(object):
         lenient=False,
     ):
 
-        zone = Zone(zone_name, sub_zones=self.configured_sub_zones(zone_name))
+        zone = self.get_zone(zone_name)
         self.log.debug(
             'sync:   populating, zone=%s, lenient=%s',
             zone.decoded_name,
@@ -749,8 +749,7 @@ class Manager(object):
                 clz = SplitYamlProvider
             target = clz('dump', output_dir)
 
-        # TODO: use get_zone???
-        zone = Zone(zone, self.configured_sub_zones(zone))
+        zone = self.get_zone(zone)
         for source in sources:
             source.populate(zone, lenient=lenient)
 
@@ -763,7 +762,7 @@ class Manager(object):
         # TODO: this code can probably be shared with stuff in sync
         for zone_name, config in self.config['zones'].items():
             decoded_zone_name = idna_decode(zone_name)
-            zone = Zone(zone_name, self.configured_sub_zones(zone_name))
+            zone = self.get_zone(zone_name)
 
             source_zone = config.get('alias')
             if source_zone:
@@ -832,9 +831,8 @@ class Manager(object):
             )
 
         zone = self.config['zones'].get(zone_name)
-        if zone:
-            return Zone(
-                idna_encode(zone_name), self.configured_sub_zones(zone_name)
-            )
+        if zone is not None:
+            sub_zones = self.configured_sub_zones(zone_name)
+            return Zone(idna_encode(zone_name), sub_zones)
 
         raise ManagerException(f'Unknown zone name {idna_decode(zone_name)}')
diff --git a/tests/test_octodns_manager.py b/tests/test_octodns_manager.py
index abcf9a7..3df325d 100644
--- a/tests/test_octodns_manager.py
+++ b/tests/test_octodns_manager.py
@@ -379,9 +379,9 @@ class TestManager(TestCase):
                 sources=['in'],
             )
 
-            # make sure this fails with an IOError and not a KeyError when
-            # trying to find sub zones
-            with self.assertRaises(IOError):
+            # make sure this fails with an ManagerException and not a KeyError
+            # when trying to find sub zones
+            with self.assertRaises(ManagerException):
                 manager.dump(
                     zone='unknown.zone.',
                     output_dir=tmpdir.dirname,
@@ -502,9 +502,9 @@ class TestManager(TestCase):
                 sources=['in'],
             )
 
-            # make sure this fails with an OSError and not a KeyError when
-            # trying to find sub zones
-            with self.assertRaises(OSError):
+            # make sure this fails with an ManagerException and not a KeyError
+            # when trying to find sub zones
+            with self.assertRaises(ManagerException):
                 manager.dump(
                     zone='unknown.zone.',
                     output_dir=tmpdir.dirname,