diff --git a/local/recipes/drivers/redbear-btusb/source/src/main.rs b/local/recipes/drivers/redbear-btusb/source/src/main.rs
index 264d767393..18347b53de 100644
--- a/local/recipes/drivers/redbear-btusb/source/src/main.rs
+++ b/local/recipes/drivers/redbear-btusb/source/src/main.rs
@@ -839,7 +839,7 @@ fn daemon_main(config: &TransportConfig) -> Result<(), String> {
         }
     };
 
-    let scheme = HciScheme::new(t, controller_info);
+    let mut scheme = HciScheme::new(t, controller_info);
     let socket = Socket::create()
         .map_err(|err| format!("failed to create scheme socket: {err}"))?;
     let mut scheme_state = redox_scheme::scheme::SchemeState::new();