diff --git a/openair1/SIMULATION/NR_PHY/pbchsim.c b/openair1/SIMULATION/NR_PHY/pbchsim.c
index 595fc52b73..956c8ecd1f 100644
--- a/openair1/SIMULATION/NR_PHY/pbchsim.c
+++ b/openair1/SIMULATION/NR_PHY/pbchsim.c
@@ -356,6 +356,7 @@ int main(int argc, char **argv)
   frame_parms->nb_antennas_rx = n_rx;
   frame_parms->N_RB_DL = N_RB_DL;
   frame_parms->N_RB_UL = N_RB_DL;
+  frame_parms->Nid_cell = Nid_cell;
 
   nr_phy_config_request_sim(gNB,N_RB_DL,N_RB_DL,mu,Nid_cell);
   phy_init_nr_gNB(gNB,0,0);