diff --git a/cyber/blocker/intra_reader.h b/cyber/blocker/intra_reader.h
index 7336577e7f5..43b94b78e0b 100644
--- a/cyber/blocker/intra_reader.h
+++ b/cyber/blocker/intra_reader.h
@@ -196,7 +196,7 @@ auto IntraReader<MessageT>::End() const -> Iterator {
 
 template <typename MessageT>
 void IntraReader<MessageT>::OnMessage(const MessagePtr& msg_ptr) {
-  this->second_to_lastest_recv_time_sec_ = this->latest_recv_time_sec_;
+  this->second_to_latest_recv_time_sec_ = this->latest_recv_time_sec_;
   this->latest_recv_time_sec_ = apollo::cyber::Time::Now().ToSecond();
   if (msg_callback_ != nullptr) {
     msg_callback_(msg_ptr);
diff --git a/cyber/node/reader.h b/cyber/node/reader.h
index 83f4fb5dcb7..c8f034729c5 100644
--- a/cyber/node/reader.h
+++ b/cyber/node/reader.h
@@ -208,7 +208,7 @@ class Reader : public ReaderBase {
 
  protected:
   double latest_recv_time_sec_ = -1.0;
-  double second_to_lastest_recv_time_sec_ = -1.0;
+  double second_to_latest_recv_time_sec_ = -1.0;
   uint32_t pending_queue_size_;
 
  private:
@@ -244,7 +244,7 @@ Reader<MessageT>::~Reader() {
 
 template <typename MessageT>
 void Reader<MessageT>::Enqueue(const std::shared_ptr<MessageT>& msg) {
-  second_to_lastest_recv_time_sec_ = latest_recv_time_sec_;
+  second_to_latest_recv_time_sec_ = latest_recv_time_sec_;
   latest_recv_time_sec_ = Time::Now().ToSecond();
   blocker_->Publish(msg);
 }
@@ -361,11 +361,11 @@ double Reader<MessageT>::GetDelaySec() const {
   if (latest_recv_time_sec_ < 0) {
     return -1.0;
   }
-  if (second_to_lastest_recv_time_sec_ < 0) {
+  if (second_to_latest_recv_time_sec_ < 0) {
     return Time::Now().ToSecond() - latest_recv_time_sec_;
   }
   return std::max((Time::Now().ToSecond() - latest_recv_time_sec_),
-                  (latest_recv_time_sec_ - second_to_lastest_recv_time_sec_));
+                  (latest_recv_time_sec_ - second_to_latest_recv_time_sec_));
 }
 
 template <typename MessageT>