diff --git a/ankisyncd/sync_app.py b/ankisyncd/sync_app.py
index e3a7e80..0cab094 100644
--- a/ankisyncd/sync_app.py
+++ b/ankisyncd/sync_app.py
@@ -71,7 +71,11 @@ class SyncCollectionHandler(Syncer):
         if client == 'ankidesktop':
             return version_int < [2, 0, 27]
         elif client == 'ankidroid':
-            return version_int < [2, 2, 3] or (version_int == [2, 3] and note["alpha"] < 4)
+            if version_int == [2, 3]:
+               if note["alpha"]:
+                  return note["alpha"] < 4
+            else:
+               return version_int < [2, 2, 3]
         else:  # unknown client, assume current version
             return False
 
diff --git a/tests/test_sync_app.py b/tests/test_sync_app.py
index a6d8af1..1837614 100644
--- a/tests/test_sync_app.py
+++ b/tests/test_sync_app.py
@@ -39,6 +39,8 @@ class SyncCollectionHandlerTest(CollectionTestBase):
             ','.join(('ankidroid', '2.2.3', '')),
             ','.join(('ankidroid', '2.3alpha4', '')),
             ','.join(('ankidroid', '2.3alpha5', '')),
+            ','.join(('ankidroid', '2.3beta1', '')),
+            ','.join(('ankidroid', '2.3', '')),
             ','.join(('ankidroid', '2.9', '')),
         )