diff --git a/rust/src/api/workspace_api.rs b/rust/src/api/workspace_api.rs
index 46bc884..d6b9ce3 100644
--- a/rust/src/api/workspace_api.rs
+++ b/rust/src/api/workspace_api.rs
@@ -29,7 +29,7 @@ impl Workspace {
 
 pub fn listen_workspaces(sink: StreamSink<Vec<Vec<Workspace>>>) -> Result<()> {
     let (tx, rx): (Sender<u32>, Channel<u32>) = channel();
-    CONTROLLER.set(tx).unwrap();
+    let _ = CONTROLLER.set(tx);
 
     let connection = Connection::connect_to_env().unwrap();
     let event_queue = connection.new_event_queue();