diff --git a/plugin/__init__.py b/plugin/__init__.py
index 481754b..a576443 100644
--- a/plugin/__init__.py
+++ b/plugin/__init__.py
@@ -345,12 +345,15 @@ def getNote(self, note_id: int) -> Note:
             raise NotFoundError('Note was not found: {}'.format(note_id))
 
     def deckStatsToJson(self, due_tree):
-        return {'deck_id': due_tree.deck_id,
-                'name': due_tree.name,
-                'new_count': due_tree.new_count,
-                'learn_count': due_tree.learn_count,
-                'review_count': due_tree.review_count,
-                'total_in_deck': due_tree.total_in_deck}
+        deckStats = {'deck_id': due_tree.deck_id,
+                     'name': due_tree.name,
+                     'new_count': due_tree.new_count,
+                     'learn_count': due_tree.learn_count,
+                     'review_count': due_tree.review_count}
+        if anki_version > (2, 1, 46):
+            # total_in_deck is not supported on lower Anki versions
+            deckStats['total_in_deck'] = due_tree.total_in_deck
+        return deckStats
 
     def collectDeckTreeChildren(self, parent_node):
         allNodes = {parent_node.deck_id: parent_node}
diff --git a/tests/test_decks.py b/tests/test_decks.py
index 822ba1c..0447347 100755
--- a/tests/test_decks.py
+++ b/tests/test_decks.py
@@ -71,4 +71,4 @@ def test_removedDeckConfigId_fails_with_invalid_id(session_with_profile_loaded):
 
 def test_getDeckStats(session_with_profile_loaded):
     result = ac.getDeckStats(decks=["Default"])
-    assert result["name"] == "Default"
+    assert list(result.values())[0]["name"] == "Default"