1 files changed, 1 insertions, 1 deletions

diff --git a/synapse/api/events/__init__.py b/synapse/api/events/__init__.py

index f66fea2904..a5a55742e0 100644
--- a/synapse/api/events/__init__.py
+++ b/synapse/api/events/__init__.py
@@ -65,13 +65,13 @@ class SynapseEvent(JsonEncodedObject):
 
     internal_keys = [
         "is_state",
-        "prev_events",
         "depth",
         "destinations",
         "origin",
         "outlier",
         "power_level",
         "redacted",
+        "prev_pdus",
     ]
 
     required_keys = [