diff --git a/acto/checker/impl/health.py b/acto/checker/impl/health.py
index b86952782..2e1e15c5d 100644
--- a/acto/checker/impl/health.py
+++ b/acto/checker/impl/health.py
@@ -53,7 +53,7 @@ def check(self, _: int, snapshot: Snapshot, __: Snapshot) -> OracleResult:
                         (dp['metadata']['name'], condition['type'], condition['status'],
                          condition['message']))
 
-        for daemonset in system_state['daemonset'].values():
+        for daemonset in system_state['daemon_set'].values():
             if (daemonset['status']['desired_number_scheduled'] != daemonset['status'][
                 'number_ready']
                     or daemonset['status']['desired_number_scheduled'] != daemonset['status']['number_available']):