diff --git a/src/sakia/tests/unit/core/test_node.py b/src/sakia/tests/unit/core/test_node.py
index e8d03e274d1be447f49696aaacf8b7f12faf937b..cf184e411e198291997e7ebb87460c96acbd85fc 100644
--- a/src/sakia/tests/unit/core/test_node.py
+++ b/src/sakia/tests/unit/core/test_node.py
@@ -70,7 +70,7 @@ BASIC_MERKLED_API ucoin.inso.ovh 80
         self.assertEqual(node.last_change, 1448199706.6561477)
         self.assertEqual(node.currency, "meta_brouzouf")
         self.assertEqual(node.peer.pubkey, "HnFcSms8jzwngtVomTTnzudZx7SHUQY8sVE1y8yBmULk")
-        self.assertEqual(node.peer.blockid.number, 0)
+        self.assertEqual(BlockId.from_str(node.peer.blockid).number, 0)
 
     def test_from_json_to_json(self):
         json_data = {"version": "0.12.0", "state": 1, "fork_window": 0, "uid": "inso",