diff --git a/bridge_master.py b/bridge_master.py
index c557ec3..eda74d8 100644
--- a/bridge_master.py
+++ b/bridge_master.py
@@ -1828,7 +1828,7 @@ class routerHBP(HBSYSTEM):
         if _call_type == 'unit' and (_dtype_vseq == 6 or _dtype_vseq == 7 or (_stream_id != self.STATUS[_slot]['RX_STREAM_ID'] and _dtype_vseq == 3)):
             _data_call = True
             
-            SUB_MAP['_rf_src'] = (self._system,_slot,pkt_time)
+            SUB_MAP[_rf_src] = (self._system,_slot,pkt_time)
             logger.info('(%s) Added subscriber %s to SUB_MAP. Slot: %s, Time: %s', self._system,int_id(_rf_src),_slot,pkt_time)
             
             if _dtype_vseq == 3: