diff --git a/src/createRoom.ts b/src/createRoom.ts
index 23a664a4c4..b9f30476e4 100644
--- a/src/createRoom.ts
+++ b/src/createRoom.ts
@@ -27,7 +27,8 @@ import * as Rooms from "./Rooms";
 import DMRoomMap from "./utils/DMRoomMap";
 import {getAddressType} from "./UserAddress";
 
-const E2EE_WK_KEY = "im.vector.riot.e2ee";
+const E2EE_WK_KEY = "im.vector.e2ee";
+const E2EE_WK_KEY_DEPRECATED = "im.vector.riot.e2ee";
 
 // we define a number of interfaces which take their names from the js-sdk
 /* eslint-disable camelcase */
@@ -300,6 +301,10 @@ export function privateShouldBeEncrypted() {
         const defaultDisabled = clientWellKnown[E2EE_WK_KEY]["default"] === false;
         return !defaultDisabled;
     }
+    if (clientWellKnown && clientWellKnown[E2EE_WK_KEY_DEPRECATED]) {
+        const defaultDisabled = clientWellKnown[E2EE_WK_KEY_DEPRECATED]["default"] === false;
+        return !defaultDisabled;
+    }
 
     return true;
 }