diff --git a/src/Coordination/KeeperDispatcher.cpp b/src/Coordination/KeeperDispatcher.cpp
index 261e43d80e4..d725ecb5cfe 100644
--- a/src/Coordination/KeeperDispatcher.cpp
+++ b/src/Coordination/KeeperDispatcher.cpp
@@ -370,7 +370,7 @@ void KeeperDispatcher::shutdown()
             /// Clear all registered sessions
             std::lock_guard lock(session_to_response_callback_mutex);
 
-            if (hasLeader())
+            if (server && hasLeader())
             {
                 close_requests.reserve(session_to_response_callback.size());
                 // send to leader CLOSE requests for active sessions
@@ -394,7 +394,7 @@ void KeeperDispatcher::shutdown()
         }
 
         // if there is no leader, there is no reason to do CLOSE because it's a write request
-        if (hasLeader() && !close_requests.empty())
+        if (server && hasLeader() && !close_requests.empty())
         {
             LOG_INFO(log, "Trying to close {} session(s)", close_requests.size());
             const auto raft_result = server->putRequestBatch(close_requests);
diff --git a/src/Coordination/KeeperServer.cpp b/src/Coordination/KeeperServer.cpp
index 8186ddd0c00..42d7d967b1f 100644
--- a/src/Coordination/KeeperServer.cpp
+++ b/src/Coordination/KeeperServer.cpp
@@ -520,7 +520,7 @@ bool KeeperServer::isFollower() const
 
 bool KeeperServer::isLeaderAlive() const
 {
-    return raft_instance->is_leader_alive();
+    return raft_instance && raft_instance->is_leader_alive();
 }
 
 /// TODO test whether taking failed peer in count