diff --git a/executables/nr-uesoftmodem.c b/executables/nr-uesoftmodem.c
index 1612480ffd..62ce0e176e 100644
--- a/executables/nr-uesoftmodem.c
+++ b/executables/nr-uesoftmodem.c
@@ -117,6 +117,8 @@ int                 vcdflag = 0;
 
 double          rx_gain_off = 0.0;
 char             *usrp_args = NULL;
+char             *tx_subdev = NULL;
+char             *rx_subdev = NULL;
 char       *rrc_config_path = NULL;
 char            *uecap_file = NULL;
 int               dumpframe = 0;
@@ -372,6 +374,8 @@ void init_openair0(void) {
     openair0_cfg[card].configFilename = get_softmodem_params()->rf_config_file;
 
     if (usrp_args) openair0_cfg[card].sdr_addrs = usrp_args;
+    if (tx_subdev) openair0_cfg[card].tx_subdev = tx_subdev;
+    if (rx_subdev) openair0_cfg[card].rx_subdev = rx_subdev;
 
   }
 }
diff --git a/executables/nr-uesoftmodem.h b/executables/nr-uesoftmodem.h
index 95914678e5..927d619c42 100644
--- a/executables/nr-uesoftmodem.h
+++ b/executables/nr-uesoftmodem.h
@@ -29,6 +29,8 @@
 /*------------------------------------------------------------------------------------------------------------------------------------------*/
 #define CMDLINE_NRUEPARAMS_DESC {  \
     {"usrp-args",                CONFIG_HLP_USRP_ARGS,   0,               strptr:(char **)&usrp_args,         defstrval:"type=b200", TYPE_STRING,   0},    \
+    {"tx_subdev",                CONFIG_HLP_USRP_ARGS,   0,               strptr:(char **)&tx_subdev,         defstrval:"", TYPE_STRING,   0},    \
+    {"rx_subdev",                CONFIG_HLP_USRP_ARGS,   0,               strptr:(char **)&rx_subdev,         defstrval:"", TYPE_STRING,   0},    \
     {"single-thread-disable",    CONFIG_HLP_NOSNGLT,     PARAMFLAG_BOOL,  iptr:&single_thread_flag,           defintval:1,           TYPE_INT,    0}, \
     {"dlsch-parallel",           CONFIG_HLP_DLSCH_PARA,  0,               iptr:(int32_t *)&nrUE_params.nr_dlsch_parallel,       defintval:0,           TYPE_UINT8,  0}, \
     {"offset-divisor",           CONFIG_HLP_OFFSET_DIV,  0,               uptr:(uint32_t *)&nrUE_params.ofdm_offset_divisor,    defuintval:UINT_MAX,           TYPE_UINT32,  0}, \