1 files changed, 4 insertions, 0 deletions
diff --git a/synapse/config/experimental.py b/synapse/config/experimental.py
index baa3580f29..749452ce93 100644
--- a/synapse/config/experimental.py
+++ b/synapse/config/experimental.py
@@ -432,3 +432,7 @@ class ExperimentalConfig(Config):
                 "You cannot have MSC4108 both enabled and delegated at the same time",
                 ("experimental", "msc4108_delegation_endpoint"),
             )
+
+        self.msc4115_membership_on_events = experimental.get(
+            "msc4115_membership_on_events", False
+        )