diff --git a/creator-keys/tests/sell_key.rs b/creator-keys/tests/sell_key.rs
index ecc0776c..9c137168 100644
--- a/creator-keys/tests/sell_key.rs
+++ b/creator-keys/tests/sell_key.rs
@@ -159,3 +159,32 @@ fn test_holder_count_returns_to_zero_after_last_holder_exit_and_rebuy() {
     assert_eq!(supply_after_rebuy, 1);
     assert_eq!(client.get_creator_holder_count(&creator), 1);
 }
+
+#[test]
+fn test_multi_key_full_exit_decrements_holder_count_only_on_last_sell() {
+    let env = test_env_with_auths();
+    let (client, creator) = setup(&env);
+    let seller = Address::generate(&env);
+
+    // Seller buys 3 keys.
+    client.buy_key(&creator, &seller, &100_i128, &None);
+    client.buy_key(&creator, &seller, &100_i128, &None);
+    client.buy_key(&creator, &seller, &100_i128, &None);
+    assert_eq!(client.get_creator_holder_count(&creator), 1);
+    assert_eq!(client.get_key_balance(&creator, &seller), 3);
+
+    // Sell 2 keys — holder count stays unchanged.
+    client.sell_key(&creator, &seller, &None);
+    assert_eq!(client.get_creator_holder_count(&creator), 1);
+    assert_eq!(client.get_key_balance(&creator, &seller), 2);
+
+    client.sell_key(&creator, &seller, &None);
+    assert_eq!(client.get_creator_holder_count(&creator), 1);
+    assert_eq!(client.get_key_balance(&creator, &seller), 1);
+
+    // Sell the last key — holder count decrements.
+    client.sell_key(&creator, &seller, &None);
+    assert_eq!(client.get_creator_holder_count(&creator), 0);
+    assert_eq!(client.get_key_balance(&creator, &seller), 0);
+    assert_eq!(client.get_total_key_supply(&creator), 0);
+}