diff --git a/openair1/SIMULATION/NR_PHY/dlsim.c b/openair1/SIMULATION/NR_PHY/dlsim.c
index 57923895d3..8df290249a 100644
--- a/openair1/SIMULATION/NR_PHY/dlsim.c
+++ b/openair1/SIMULATION/NR_PHY/dlsim.c
@@ -603,6 +603,7 @@ int main(int argc, char **argv)
   rrc.carrier.servingcellconfigcommon = calloc(1,sizeof(*rrc.carrier.servingcellconfigcommon));
 
   NR_ServingCellConfigCommon_t *scc = rrc.carrier.servingcellconfigcommon;
+  NR_ServingCellConfig_t *scd = calloc(1,sizeof(NR_ServingCellConfig_t));
   NR_CellGroupConfig_t *secondaryCellGroup=calloc(1,sizeof(*secondaryCellGroup));
   prepare_scc(rrc.carrier.servingcellconfigcommon);
   uint64_t ssb_bitmap;
@@ -610,7 +611,10 @@ int main(int argc, char **argv)
 
   fix_scc(scc,ssb_bitmap);
 
+  prepare_scd(scd);
+
   fill_default_secondaryCellGroup(scc,
+          scd,
 				  secondaryCellGroup,
 				  0,
 				  1,
diff --git a/openair1/SIMULATION/NR_PHY/nr_unitary_defs.h b/openair1/SIMULATION/NR_PHY/nr_unitary_defs.h
index a7150fb2f9..dcacf4db3b 100644
--- a/openair1/SIMULATION/NR_PHY/nr_unitary_defs.h
+++ b/openair1/SIMULATION/NR_PHY/nr_unitary_defs.h
@@ -235,6 +235,7 @@ void fill_scc(NR_ServingCellConfigCommon_t *scc,uint64_t *ssb_bitmap,int N_RB_DL
 
 void fix_scc(NR_ServingCellConfigCommon_t *scc,uint64_t ssbmap);
 void prepare_scc(NR_ServingCellConfigCommon_t *scc);
+void prepare_scd(NR_ServingCellConfig_t *scd);
 ngap_gNB_config_t ngap_config;
 uint32_t ngap_generate_gNB_id(void) {return 0;}
 void configure_nfapi_pnf(char *vnf_ip_addr, int vnf_p5_port, char *pnf_ip_addr, int pnf_p7_port, int vnf_p7_port) { return;}
diff --git a/openair1/SIMULATION/NR_PHY/ulsim.c b/openair1/SIMULATION/NR_PHY/ulsim.c
index 821ac75a64..b92546b43b 100644
--- a/openair1/SIMULATION/NR_PHY/ulsim.c
+++ b/openair1/SIMULATION/NR_PHY/ulsim.c
@@ -566,6 +566,7 @@ int main(int argc, char **argv)
   rrc.carrier.servingcellconfigcommon = calloc(1,sizeof(*rrc.carrier.servingcellconfigcommon));
 
   NR_ServingCellConfigCommon_t *scc = rrc.carrier.servingcellconfigcommon;
+  NR_ServingCellConfig_t *scd = calloc(1,sizeof(NR_ServingCellConfig_t));
   NR_CellGroupConfig_t *secondaryCellGroup=calloc(1,sizeof(*secondaryCellGroup));
   prepare_scc(rrc.carrier.servingcellconfigcommon);
   uint64_t ssb_bitmap;
@@ -573,7 +574,10 @@ int main(int argc, char **argv)
 
   fix_scc(scc,ssb_bitmap);
 
+  prepare_scd(scd);
+
   fill_default_secondaryCellGroup(scc,
+          scd,
 				  secondaryCellGroup,
 				  0,
 				  1,