diff --git a/components/style/properties/longhands/box.mako.rs b/components/style/properties/longhands/box.mako.rs
index 98d5ad296c9..3a8690e8604 100644
--- a/components/style/properties/longhands/box.mako.rs
+++ b/components/style/properties/longhands/box.mako.rs
@@ -633,7 +633,7 @@ ${helpers.predefined_type(
     "Appearance",
     "computed::Appearance::None",
     engines="gecko",
-    alias="-webkit-appearance:layout.css.webkit-appearance.enabled",
+    alias="-webkit-appearance",
     spec="Nonstandard (https://developer.mozilla.org/en-US/docs/Web/CSS/-moz-appearance)",
     animation_value_type="discrete",
     gecko_ffi_name="mAppearance",