diff --git a/components/style/values/specified/color.rs b/components/style/values/specified/color.rs
index 675e1b9a131..d1f27eeb503 100644
--- a/components/style/values/specified/color.rs
+++ b/components/style/values/specified/color.rs
@@ -107,6 +107,16 @@ pub enum SystemColor {
     IMESelectedConvertedTextUnderline,
     #[css(skip)]
     SpellCheckerUnderline,
+    #[css(skip)]
+    ScrollbarInactive,
+    #[css(skip)]
+    ScrollbarThumb,
+    #[css(skip)]
+    ScrollbarThumbHover,
+    #[css(skip)]
+    ScrollbarThumbActive,
+    #[css(skip)]
+    ScrollbarThumbInactive,
     Activeborder,
     Activecaption,
     Appworkspace,