diff --git a/src/hooks/room/useElementCallPermissions.tsx b/src/hooks/room/useElementCallPermissions.tsx
index 5910913168..163e78d358 100644
--- a/src/hooks/room/useElementCallPermissions.tsx
+++ b/src/hooks/room/useElementCallPermissions.tsx
@@ -117,8 +117,7 @@ const useSlotsCallPermissions = (
         await room.client.sendStateEvent(room.roomId, "org.matrix.msc4143.rtc.slot", {
             "application": {
                 "type": "m.call",
-                // 
-                "m.call.id": "i_dont_know_what_this_should_be",
+                // m.call.id is not specified here, as we want this slot to be general purpose
             }
         }, "m.call#ROOM");
         return true;
diff --git a/src/models/Call.ts b/src/models/Call.ts
index 32b50bf063..f72032da1f 100644
--- a/src/models/Call.ts
+++ b/src/models/Call.ts
@@ -710,7 +710,7 @@ export class ElementCall extends Call {
         }
 
         if (SettingsStore.getValue("feature_element_call_msc4354")) {
-            params.append("useStickyEvents", "true");
+            params.append("preferStickyEvents", "true");
         }
 
         // Set custom fonts