diff --git a/patroni/dcs/etcd.py b/patroni/dcs/etcd.py
index a7077be7..b6e20ba0 100644
--- a/patroni/dcs/etcd.py
+++ b/patroni/dcs/etcd.py
@@ -404,7 +404,7 @@ class EtcdClient(AbstractEtcdClientWithFailover):
         if self.http is not None:
             try:
                 self.http.clear()
-            except (ReferenceError, TypeError):
+            except (ReferenceError, TypeError, AttributeError):
                 pass
 
     def _prepare_get_members(self, etcd_nodes):