diff --git a/bacnet-stack/src/mstp.c b/bacnet-stack/src/mstp.c
index d53002c8..acdf1346 100644
--- a/bacnet-stack/src/mstp.c
+++ b/bacnet-stack/src/mstp.c
@@ -589,7 +589,7 @@ bool MSTP_Master_Node_FSM(
     uint8_t next_poll_station = 0;
     uint8_t next_this_station = 0;
     uint8_t next_next_station = 0;
-    uint16_t my_timeout = 10, ns_timeout = 0, mm_timeout = 0;
+    uint16_t my_timeout = 10, ns_timeout = 0;
     /* transition immediately to the next state */
     bool transition_now = false;
     MSTP_MASTER_STATE master_state = mstp_port->master_state;
@@ -950,11 +950,7 @@ bool MSTP_Master_Node_FSM(
             } else {
                 ns_timeout =
                     Tno_token + (Tslot * (mstp_port->This_Station + 1));
-                mm_timeout =
-                    Tno_token + (Tslot * (mstp_port->Nmax_master + 1));
-                if ((mstp_port->SilenceTimer((void *) mstp_port) < ns_timeout)
-                    || (mstp_port->SilenceTimer((void *) mstp_port) >
-                        mm_timeout)) {
+                if (mstp_port->SilenceTimer((void *) mstp_port) < ns_timeout) {
                     /* GenerateToken */
                     /* Assume that this node is the lowest numerical address  */
                     /* on the network and is empowered to create a token.  */