diff --git a/api/client-server/v2_alpha/sync.yaml b/api/client-server/v2_alpha/sync.yaml
index e9f12a32..675eda5d 100644
--- a/api/client-server/v2_alpha/sync.yaml
+++ b/api/client-server/v2_alpha/sync.yaml
@@ -274,7 +274,7 @@ paths:
                       "account_data": {
                         "events": [
                           {
-                            "type": "m.tags",
+                            "type": "m.tag",
                             "content": {"tags": {"work": {"order": 1}}}
                           },
                           {