diff --git a/validator/state-serializer.cpp b/validator/state-serializer.cpp
index 4ac4fc707..8e1b1b575 100644
--- a/validator/state-serializer.cpp
+++ b/validator/state-serializer.cpp
@@ -287,7 +287,8 @@ bool AsyncStateSerializer::need_serialize(BlockHandle handle) {
   if (handle->id().id.seqno == 0 || !handle->is_key_block()) {
     return false;
   }
-  return ValidatorManager::is_persistent_state(handle->unix_time(), last_key_block_ts_);
+  return ValidatorManager::is_persistent_state(handle->unix_time(), last_key_block_ts_) &&
+         ValidatorManager::persistent_state_ttl(handle->unix_time()) > (UnixTime)td::Clocks::system();
 }
 
 }  // namespace validator