diff --git a/targets/SIMU/USER/oaisim_functions.c b/targets/SIMU/USER/oaisim_functions.c
index 72153c3ee7..f7e6b97d37 100644
--- a/targets/SIMU/USER/oaisim_functions.c
+++ b/targets/SIMU/USER/oaisim_functions.c
@@ -934,12 +934,12 @@ void init_openair1(void)
         PHY_vars_eNB_g[eNB_id][CC_id]->pusch_config_dedicated[UE_id].betaOffset_ACK_Index = beta_ACK;
         PHY_vars_eNB_g[eNB_id][CC_id]->pusch_config_dedicated[UE_id].betaOffset_RI_Index  = beta_RI;
         PHY_vars_eNB_g[eNB_id][CC_id]->pusch_config_dedicated[UE_id].betaOffset_CQI_Index = beta_CQI;
-        PHY_vars_eNB_g[eNB_id][CC_id]->lte_frame_parms.pdsch_config_common.p_b = (frame_parms[CC_id]->nb_antennas_tx_eNB>1) ? 1 : 0; // rho_A = rho_B
+        PHY_vars_eNB_g[eNB_id][CC_id]->lte_frame_parms.pdsch_config_common.p_b = (frame_parms[CC_id]->nb_antenna_ports_eNB>1) ? 1 : 0; // rho_A = rho_B
 
         PHY_vars_UE_g[UE_id][CC_id]->pusch_config_dedicated[eNB_id].betaOffset_ACK_Index = beta_ACK;
         PHY_vars_UE_g[UE_id][CC_id]->pusch_config_dedicated[eNB_id].betaOffset_RI_Index  = beta_RI;
         PHY_vars_UE_g[UE_id][CC_id]->pusch_config_dedicated[eNB_id].betaOffset_CQI_Index = beta_CQI;
-        PHY_vars_UE_g[UE_id][CC_id]->lte_frame_parms.pdsch_config_common.p_b = (frame_parms[CC_id]->nb_antennas_tx_eNB>1) ? 1 : 0; // rho_A = rho_B
+        PHY_vars_UE_g[UE_id][CC_id]->lte_frame_parms.pdsch_config_common.p_b = (frame_parms[CC_id]->nb_antenna_ports_eNB>1) ? 1 : 0; // rho_A = rho_B
       }
     }
   }