diff --git a/patroni/postgresql.py b/patroni/postgresql.py
index 8b2ab861..45ed5c92 100644
--- a/patroni/postgresql.py
+++ b/patroni/postgresql.py
@@ -732,6 +732,7 @@ class Postgresql(object):
 
         if leader and leader.name == self.name:
             self._need_rewind = False
+            member = None
             if self.is_running():
                 return
         else: