diff --git a/components/style/values/generics/box.rs b/components/style/values/generics/box.rs
index 073d2edbe65..b8ade8a467a 100644
--- a/components/style/values/generics/box.rs
+++ b/components/style/values/generics/box.rs
@@ -142,7 +142,7 @@ impl<L: ToCss> ToCss for ContainIntrinsicSize<L> {
     ToShmem,
 )]
 #[repr(transparent)]
-#[value_info(other_values = "auto")]
+#[value_info(other_values = "none")]
 pub struct GenericLineClamp<I>(pub I);
 
 pub use self::GenericLineClamp as LineClamp;