diff --git a/libervia/backend/plugins/plugin_xep_0384.py b/libervia/backend/plugins/plugin_xep_0384.py
index c9117504..aa473582 100644
--- a/libervia/backend/plugins/plugin_xep_0384.py
+++ b/libervia/backend/plugins/plugin_xep_0384.py
@@ -1596,8 +1596,10 @@ class OMEMO:
         # including IQs.
 
         # Give twomemo a (slightly) higher priority than oldmemo
-        sat.register_encryption_plugin(self, "TWOMEMO", twomemo.twomemo.NAMESPACE, 101)
-        sat.register_encryption_plugin(self, "OLDMEMO", oldmemo.oldmemo.NAMESPACE, 100)
+        sat.register_encryption_plugin(self, "OMEMO", twomemo.twomemo.NAMESPACE, 101)
+        sat.register_encryption_plugin(
+            self, "OMEMO_legacy", oldmemo.oldmemo.NAMESPACE, 100
+        )
 
         xep_0163 = cast(XEP_0163, sat.plugins["XEP-0163"])
         xep_0163.add_pep_event(