diff --git a/tests/integration/api_swarm_test.py b/tests/integration/api_swarm_test.py
index 00477e103..429533c71 100644
--- a/tests/integration/api_swarm_test.py
+++ b/tests/integration/api_swarm_test.py
@@ -249,6 +249,7 @@ def test_rotate_manager_unlock_key(self):
             rotate_manager_unlock_key=True
         )
         key_2 = self.client.get_unlock_key()
+        self._unlock_key = key_2
         assert key_1['UnlockKey'] != key_2['UnlockKey']
 
     @requires_api_version('1.30')