diff --git a/servo/components/style/properties/computed_value_flags.rs b/servo/components/style/properties/computed_value_flags.rs
index 6e66f7bc2e3b..8c6d0f74caa7 100644
--- a/servo/components/style/properties/computed_value_flags.rs
+++ b/servo/components/style/properties/computed_value_flags.rs
@@ -126,6 +126,9 @@ bitflags! {
 
         /// Whether there are author-specific rules for text `color`.
         const HAS_AUTHOR_SPECIFIED_TEXT_COLOR = 1 << 25;
+
+        /// Whether this style considered a scope style rule.
+        const CONSIDERED_SCOPED_STYLE = 1 << 26;
     }
 }
 
@@ -158,7 +161,8 @@ impl ComputedValueFlags {
     /// Flags that are an input to the cascade.
     #[inline]
     fn cascade_input_flags() -> Self {
-        Self::USES_VIEWPORT_UNITS_ON_CONTAINER_QUERIES
+        Self::USES_VIEWPORT_UNITS_ON_CONTAINER_QUERIES |
+        Self::CONSIDERED_SCOPED_STYLE
     }
 
     /// Returns the flags that are always propagated to descendants.
diff --git a/servo/components/style/stylist.rs b/servo/components/style/stylist.rs
index 67d7753f63b8..c34a55ca5d48 100644
--- a/servo/components/style/stylist.rs
+++ b/servo/components/style/stylist.rs
@@ -2862,6 +2862,8 @@ impl CascadeData {
         element: E,
         context: &mut MatchingContext<E::Impl>,
     ) -> ScopeProximity {
+        context.extra_data.cascade_input_flags.insert(ComputedValueFlags::CONSIDERED_SCOPED_STYLE);
+
         let candidates = self.scope_condition_matches(
             rule.scope_condition_id,
             stylist,