diff --git a/accounts-db/src/accounts_db.rs b/accounts-db/src/accounts_db.rs
index 169e3d498f3fa3..59e8c5cc232ce6 100644
--- a/accounts-db/src/accounts_db.rs
+++ b/accounts-db/src/accounts_db.rs
@@ -821,7 +821,7 @@ impl<'a> MultiThreadProgress<'a> {
 pub type AtomicAccountsFileId = AtomicU32;
 pub type AccountsFileId = u32;
 
-type AccountSlots = HashMap<Pubkey, HashSet<Slot>>;
+type AccountSlots = HashMap<Pubkey, IntSet<Slot>>;
 type SlotOffsets = HashMap<Slot, IntSet<usize>>;
 type ReclaimResult = (AccountSlots, SlotOffsets);
 type PubkeysRemovedFromAccountsIndex = HashSet<Pubkey>;
@@ -15443,7 +15443,7 @@ pub mod tests {
                 &pubkeys_removed_from_accounts_index,
             );
             assert_eq!(
-                vec![(pk1, vec![slot1].into_iter().collect::<HashSet<_>>())],
+                vec![(pk1, vec![slot1].into_iter().collect::<IntSet<_>>())],
                 purged_stored_account_slots.into_iter().collect::<Vec<_>>()
             );
             let expected = u64::from(already_removed);
@@ -15497,7 +15497,7 @@ pub mod tests {
                     &pubkeys_removed_from_accounts_index,
                 );
                 assert_eq!(
-                    vec![(pk1, vec![slot1].into_iter().collect::<HashSet<_>>())],
+                    vec![(pk1, vec![slot1].into_iter().collect::<IntSet<_>>())],
                     purged_stored_account_slots.into_iter().collect::<Vec<_>>()
                 );
                 assert_eq!(db.accounts_index.ref_count_from_storage(&pk1), 0);
@@ -15535,7 +15535,7 @@ pub mod tests {
                 );
                 for (pk, slots) in [(pk1, vec![slot1, slot2]), (pk2, vec![slot1])] {
                     let result = purged_stored_account_slots.remove(&pk).unwrap();
-                    assert_eq!(result, slots.into_iter().collect::<HashSet<_>>());
+                    assert_eq!(result, slots.into_iter().collect::<IntSet<_>>());
                 }
                 assert!(purged_stored_account_slots.is_empty());
                 assert_eq!(db.accounts_index.ref_count_from_storage(&pk1), 0);