1 files changed, 1 insertions, 1 deletions
diff --git a/synapse/api/errors.py b/synapse/api/errors.py
index cc7b785472..54268e0889 100644
--- a/synapse/api/errors.py
+++ b/synapse/api/errors.py
@@ -84,7 +84,7 @@ class Codes(str, Enum):
     # By opposition to `USER_DEACTIVATED`, this is a reversible measure
     # that can possibly be appealed and reverted.
     # Part of MSC3823.
-    USER_ACCOUNT_SUSPENDED = "ORG.MATRIX.MSC3823.USER_ACCOUNT_SUSPENDED"
+    USER_ACCOUNT_SUSPENDED = "M_ORG_MATRIX_MSC3823_USER_ACCOUNT_SUSPENDED"
 
     BAD_ALIAS = "M_BAD_ALIAS"
     # For restricted join rules.