diff --git a/main/boards/common/ml307_board.cc b/main/boards/common/ml307_board.cc
index b000a3f1..e150b750 100644
--- a/main/boards/common/ml307_board.cc
+++ b/main/boards/common/ml307_board.cc
@@ -112,7 +112,8 @@ std::string Ml307Board::GetBoardJson() {
     board_json += "\"carrier\":\"" + modem_.GetCarrierName() + "\",";
     board_json += "\"csq\":\"" + std::to_string(modem_.GetCsq()) + "\",";
     board_json += "\"imei\":\"" + modem_.GetImei() + "\",";
-    board_json += "\"iccid\":\"" + modem_.GetIccid() + "\"}";
+    board_json += "\"iccid\":\"" + modem_.GetIccid() + "\",";
+    board_json += "\"cereg\":" + modem_.GetRegistrationState().ToString() + "}";
     return board_json;
 }