diff --git a/Transceiver52M/device/lms/LMSDevice.cpp b/Transceiver52M/device/lms/LMSDevice.cpp
index 3b2ce5e6..9cfa96dc 100644
--- a/Transceiver52M/device/lms/LMSDevice.cpp
+++ b/Transceiver52M/device/lms/LMSDevice.cpp
@@ -345,7 +345,7 @@ bool LMSDevice::flush_recv(size_t num_pkts)
 			return false;
 		}
 
-		ts_initial = rx_metadata.timestamp;
+		ts_initial = rx_metadata.timestamp + len;
 	}
 
 	LOG(INFO) << "Initial timestamp " << ts_initial << std::endl;