diff --git a/runtime/src/lib.rs b/runtime/src/lib.rs
index b4a5e819..7e46593a 100644
--- a/runtime/src/lib.rs
+++ b/runtime/src/lib.rs
@@ -60,7 +60,7 @@ pub enum Action<T> {
     },
 
     /// Run a widget operation.
-    Widget(Box<dyn widget::Operation<()> + Send>),
+    Widget(Box<dyn widget::Operation<()>>),
 
     /// Run a clipboard action.
     Clipboard(clipboard::Action),