1 files changed, 2 insertions, 2 deletions
diff --git a/components/script/dom/mutationobserver.rs b/components/script/dom/mutationobserver.rs
index 99681c5941a..650d6caefb1 100644
--- a/components/script/dom/mutationobserver.rs
+++ b/components/script/dom/mutationobserver.rs
@@ -94,7 +94,7 @@ impl MutationObserver {
     ) -> Fallible<DomRoot<MutationObserver>> {
         global.set_exists_mut_observer();
         let observer = MutationObserver::new_with_proto(global, proto, callback);
-        ScriptThread::add_mutation_observer(&*observer);
+        ScriptThread::add_mutation_observer(&observer);
         Ok(observer)
     }
 
@@ -125,7 +125,7 @@ impl MutationObserver {
             if !queue.is_empty() {
                 let _ = mo
                     .callback
-                    .Call_(&**mo, queue, &**mo, ExceptionHandling::Report);
+                    .Call_(&**mo, queue, mo, ExceptionHandling::Report);
             }
         }
         // TODO: Step 6 (slot signals)