diff --git a/crates/red_knot_python_semantic/src/semantic_index/use_def/symbol_state.rs b/crates/red_knot_python_semantic/src/semantic_index/use_def/symbol_state.rs
index 28fe84e77c26f0..fd62271ccda1f4 100644
--- a/crates/red_knot_python_semantic/src/semantic_index/use_def/symbol_state.rs
+++ b/crates/red_knot_python_semantic/src/semantic_index/use_def/symbol_state.rs
@@ -36,9 +36,9 @@
 //! dominates, but it does dominate the `x = 1 if flag2 else None` definition, so we have to keep
 //! track of that.
 //!
-//! The data structures used here ([`BitSet`] and [`BitSetArray`]) optimize for keeping all data
-//! inline (avoiding lots of scattered allocations) in small-to-medium cases, and falling back to
-//! heap allocation to be able to scale to arbitrary numbers of definitions and constraints when
+//! The data structures used here ([`BitSet`] and [`smallvec::SmallVec`]) optimize for keeping all
+//! data inline (avoiding lots of scattered allocations) in small-to-medium cases, and falling back
+//! to heap allocation to be able to scale to arbitrary numbers of definitions and constraints when
 //! needed.
 use super::bitset::{BitSet, BitSetIterator};
 use ruff_index::newtype_index;
@@ -65,7 +65,7 @@ const INLINE_CONSTRAINT_BLOCKS: usize = 2;
 /// Can keep inline this many visible definitions per symbol at a given time; more will go to heap.
 const INLINE_VISIBLE_DEFINITIONS_PER_SYMBOL: usize = 4;
 
-/// A [`BitSetArray`];one [`BitSet`] of applicable [`ScopedConstraintId`] per visible definition.
+/// One [`BitSet`] of applicable [`ScopedConstraintId`] per visible definition.
 type Constraints =
     SmallVec<[BitSet<INLINE_CONSTRAINT_BLOCKS>; INLINE_VISIBLE_DEFINITIONS_PER_SYMBOL]>;
 type ConstraintsIterator<'a> = std::slice::Iter<'a, BitSet<INLINE_CONSTRAINT_BLOCKS>>;
@@ -78,7 +78,7 @@ pub(super) struct SymbolState {
 
     /// For each definition, which [`ScopedConstraintId`] apply?
     ///
-    /// This is a [`BitSetArray`] which should always have one [`BitSet`] of constraints per
+    /// This is a [`smallvec::SmallVec`] which should always have one [`BitSet`] of constraints per
     /// definition in `visible_definitions`.
     constraints: Constraints,