--- a/gfx/wr/webrender/src/spatial_node.rs
+++ b/gfx/wr/webrender/src/spatial_node.rs
@@ -694,18 +694,22 @@ impl SpatialNode {
                                 ScaleOffset::from_offset(origin_offset.to_untyped())
                                     .accumulate(&scale_offset)
                             }
                             None => return,
                         }
                     }
 
                     // Assume animations start at the identity transform for snapping purposes.
+                    // We still want to incorporate the reference frame offset however.
                     // TODO(aosmond): Is there a better known starting point?
-                    PropertyBinding::Binding(..) => ScaleOffset::identity(),
+                    PropertyBinding::Binding(..) => {
+                        let origin_offset = info.origin_in_parent_reference_frame;
+                        ScaleOffset::from_offset(origin_offset.to_untyped())
+                    }
                 }
             }
             _ => ScaleOffset::identity(),
         };
 
         self.snapping_transform = Some(parent_scale_offset.accumulate(&scale_offset));
     }