diff --git a/openair1/PHY/INIT/nr_init.c b/openair1/PHY/INIT/nr_init.c
index 28fe9b8f82..2c84af188e 100644
--- a/openair1/PHY/INIT/nr_init.c
+++ b/openair1/PHY/INIT/nr_init.c
@@ -352,6 +352,8 @@ void nr_phy_config_request_sim(PHY_VARS_gNB *gNB,
   gNB_config->ssb_table.ssb_period.value		= 1; //10ms
   gNB_config->carrier_config.dl_grid_size[mu].value     = N_RB_DL;
   gNB_config->carrier_config.ul_grid_size[mu].value     = N_RB_UL;
+  gNB_config->carrier_config.num_tx_ant.value           = fp->nb_antennas_tx;
+  gNB_config->carrier_config.num_rx_ant.value           = fp->nb_antennas_rx;
 
   //gNB_config->subframe_config.dl_cyclic_prefix_type.value = (fp->Ncp == NORMAL) ? NFAPI_CP_NORMAL : NFAPI_CP_EXTENDED;