diff --git a/js/ui/slider.js b/js/ui/slider.js
index 6653898b0..4f60556ae 100644
--- a/js/ui/slider.js
+++ b/js/ui/slider.js
@@ -140,7 +140,7 @@ export const Slider = GObject.registerClass({
         let direction = event.get_scroll_direction();
         let delta;
 
-        if (event.is_pointer_emulated())
+        if (event.get_flags() & Clutter.EventFlags.POINTER_EMULATED)
             return Clutter.EVENT_PROPAGATE;
 
         if (direction == Clutter.ScrollDirection.DOWN) {