--- a/gfx/webrender_bindings/src/bindings.rs
+++ b/gfx/webrender_bindings/src/bindings.rs
@@ -1632,18 +1632,18 @@ pub extern "C" fn wr_dp_push_stacking_co
         Some(transform) => Some(PropertyBinding::Value(transform.clone())),
         None => None,
     };
 
     let anim = unsafe { animation.as_ref() };
     if let Some(anim) = anim {
         debug_assert!(anim.id > 0);
         match anim.effect_type {
-            WrAnimationType::Opacity => filters.push(FilterOp::Opacity(PropertyBinding::Binding(PropertyBindingKey::new(anim.id)), 1.0)),
-            WrAnimationType::Transform => transform_binding = Some(PropertyBinding::Binding(PropertyBindingKey::new(anim.id))),
+            WrAnimationType::Opacity => filters.push(FilterOp::Opacity(PropertyBinding::Binding(PropertyBindingKey::new(anim.id), 1.0), 1.0)),
+            WrAnimationType::Transform => transform_binding = Some(PropertyBinding::Binding(PropertyBindingKey::new(anim.id), LayoutTransform::identity())),
         }
     }
 
     let perspective_ref = unsafe { perspective.as_ref() };
     let perspective = match perspective_ref {
         Some(perspective) => Some(perspective.clone()),
         None => None,
     };