diff --git a/bindings/matrix-sdk-ffi/src/room/mod.rs b/bindings/matrix-sdk-ffi/src/room/mod.rs
index 6ef33ad6110..2a9e467742e 100644
--- a/bindings/matrix-sdk-ffi/src/room/mod.rs
+++ b/bindings/matrix-sdk-ffi/src/room/mod.rs
@@ -1129,22 +1129,29 @@ impl Room {
pub async fn fetch_thread_subscription(
&self,
thread_root_event_id: String,
- ) -> Result