diff --git a/components/style/gecko/media_features.rs b/components/style/gecko/media_features.rs
index c80ace2015b..be30e5f0b6f 100644
--- a/components/style/gecko/media_features.rs
+++ b/components/style/gecko/media_features.rs
@@ -652,7 +652,7 @@ macro_rules! bool_pref_feature {
 /// to support new types in these entries and (2) ensuring that either
 /// nsPresContext::MediaFeatureValuesChanged is called when the value that
 /// would be returned by the evaluator function could change.
-pub static MEDIA_FEATURES: [MediaFeatureDescription; 57] = [
+pub static MEDIA_FEATURES: [MediaFeatureDescription; 58] = [
     feature!(
         atom!("width"),
         AllowsRanges::Yes,
@@ -919,6 +919,7 @@ pub static MEDIA_FEATURES: [MediaFeatureDescription; 57] = [
         atom!("-moz-gtk-csd-reversed-placement"),
         GTKCSDReversedPlacement
     ),
+    lnf_int_feature!(atom!("-moz-gtk-wayland"), GTKWayland),
     lnf_int_feature!(atom!("-moz-system-dark-theme"), SystemUsesDarkTheme),
     bool_pref_feature!(
         atom!("-moz-proton-places-tooltip"),