diff --git a/style_static_prefs/src/lib.rs b/style_static_prefs/src/lib.rs
index 0973810ed8..7000c04de8 100644
--- a/style_static_prefs/src/lib.rs
+++ b/style_static_prefs/src/lib.rs
@@ -21,6 +21,9 @@ macro_rules! pref {
     ("gfx.font_rendering.opentype_svg.enabled") => {
         false
     };
+    ("layout.css.basic-shape-xywh.enabled") => {
+        false
+    };
     ("layout.css.color-mix.enabled") => {
         true
     };