diff -r db8299984bfe -r 6a842bd49fea tests/test_kv_list.c
--- a/tests/test_kv_list.c	Mon Dec 22 15:47:59 2025 +0100
+++ b/tests/test_kv_list.c	Mon Dec 22 16:12:20 2025 +0100
@@ -592,9 +592,9 @@
         CX_TEST_ASSERT(*y == 11);
 
         // removing the element
-        CX_TEST_ASSERT(0 == cxMapRemove(map, cx_strn(key->data, key->len)));
+        CX_TEST_ASSERT(0 == cxMapRemove(map, cx_hash_key_as_string(key)));
         key = cxKvListGetKey(list, 1);
-        CX_TEST_ASSERT(0 == cx_strcmp("efg", cx_strn(key->data, key->len)));
+        CX_TEST_ASSERT(0 == cx_strcmp("efg", cx_hash_key_as_string(key)));
 
         // remove the key of element
         CX_TEST_ASSERT(0 == cxKvListRemoveKey(list, 1));