diff --git a/servo/components/selectors/context.rs b/servo/components/selectors/context.rs
index 1bdad188e815..8abfebbf78a0 100644
--- a/servo/components/selectors/context.rs
+++ b/servo/components/selectors/context.rs
@@ -132,9 +132,6 @@ where
     visited_handling: VisitedHandlingMode,
 
     /// The current nesting level of selectors that we're matching.
-    ///
-    /// FIXME(emilio): Consider putting the mutable stuff in a Cell, then make
-    /// MatchingContext immutable again.
     nesting_level: usize,
 
     /// Whether we're inside a negation or not.