diff --git a/components/script/dom/debuggerglobalscope.rs b/components/script/dom/debuggerglobalscope.rs
index 33a738a45a8..c928e1dd89d 100644
--- a/components/script/dom/debuggerglobalscope.rs
+++ b/components/script/dom/debuggerglobalscope.rs
@@ -122,7 +122,6 @@ impl DebuggerGlobalScope {
         }
     }
 
-    #[allow(unsafe_code)]
     pub(crate) fn fire_add_debuggee(&self, can_gc: CanGc, global: &GlobalScope) {
         assert_eq!(
             DomRoot::upcast::<Event>(DebuggerEvent::new(self.upcast(), global, can_gc))