diff --git a/style/properties/longhands/font.mako.rs b/style/properties/longhands/font.mako.rs
index 974d5db7d..a3d6d1766 100644
--- a/style/properties/longhands/font.mako.rs
+++ b/style/properties/longhands/font.mako.rs
@@ -291,7 +291,7 @@ ${helpers.predefined_type(
 ${helpers.predefined_type(
     "-x-lang",
     "XLang",
-    engines="gecko",
+    engines="gecko servo",
     initial_value="computed::XLang::get_initial_value()",
     animation_value_type="none",
     enabled_in="",
diff --git a/style/values/specified/font.rs b/style/values/specified/font.rs
index 7d13864f0..741bbfcde 100644
--- a/style/values/specified/font.rs
+++ b/style/values/specified/font.rs
@@ -2036,6 +2036,7 @@ impl XTextScale {
     ToResolvedValue,
     ToShmem,
 )]
+#[cfg_attr(feature = "servo", derive(Deserialize, Serialize))]
 /// Internal property that reflects the lang attribute
 pub struct XLang(#[css(skip)] pub Atom);