diff --git a/scheduler/schedule.cpp b/scheduler/schedule.cpp
index 4ebd6b1..61a8410 100644
--- a/scheduler/schedule.cpp
+++ b/scheduler/schedule.cpp
@@ -302,7 +302,7 @@ int SensorScheduler::GetNextDuration(int short_addr, int &next_task_id) {
     } else {
         id = iter->second;
     }
-    long current_ts_ = GetLocalTs(); 
+    current_ts_ = GetLocalTs(); 
     // nth_wave_start_slice_ = (current_ts_ - start_timestamp_) / wave_form_send_interval_;
     // current_wave_start_ts_ = nth_wave_start_slice_ * wave_form_send_interval_ + start_timestamp_;
     // seconds_in_current_wave_slice_ = current_ts_ - current_wave_start_ts_;