diff --git a/components/style/properties/longhands/box.mako.rs b/components/style/properties/longhands/box.mako.rs
index dd3cfb2c78c..dfdeebe6a93 100644
--- a/components/style/properties/longhands/box.mako.rs
+++ b/components/style/properties/longhands/box.mako.rs
@@ -273,6 +273,7 @@ ${helpers.predefined_type(
     engines="gecko",
     animation_value_type="ComputedValue",
     gecko_pref="layout.css.motion-path-offset-position.enabled",
+    flags="CAN_ANIMATE_ON_COMPOSITOR",
     spec="https://drafts.fxtf.org/motion-1/#offset-position-property",
     servo_restyle_damage="reflow_out_of_flow",
     boxed=True