1 files changed, 8 insertions, 0 deletions
diff --git a/components/script/dom/macros.rs b/components/script/dom/macros.rs
index bb8adc3dcef..0583fc7edd7 100644
--- a/components/script/dom/macros.rs
+++ b/components/script/dom/macros.rs
@@ -223,6 +223,14 @@ macro_rules! no_jsmanaged_fields(
             }
         }
     );
+    ($ty:ident<$($gen:ident: $bound:ident),+>) => (
+        impl<$($gen: $bound),+> $crate::dom::bindings::trace::JSTraceable for $ty<$($gen),+> {
+            #[inline]
+            fn trace(&self, _: *mut ::js::jsapi::JSTracer) {
+                // Do nothing
+            }
+        }
+    );
 );
 
 /// These are used to generate a event handler which has no special case.