1 files changed, 0 insertions, 2 deletions
diff --git a/synapse/config/experimental.py b/synapse/config/experimental.py
index 6503ce6e34..c35301207a 100644
--- a/synapse/config/experimental.py
+++ b/synapse/config/experimental.py
@@ -95,8 +95,6 @@ class ExperimentalConfig(Config):
         # MSC2815 (allow room moderators to view redacted event content)
         self.msc2815_enabled: bool = experimental.get("msc2815_enabled", False)
 
-        # MSC3771: Thread read receipts
-        self.msc3771_enabled: bool = experimental.get("msc3771_enabled", False)
         # MSC3772: A push rule for mutual relations.
         self.msc3772_enabled: bool = experimental.get("msc3772_enabled", False)
         # MSC3773: Thread notifications