diff --git a/openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c b/openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c
index 1fc6f4b6e8..0820c40f3c 100644
--- a/openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c
+++ b/openair2/LAYER2/NR_MAC_UE/nr_ra_procedures.c
@@ -74,7 +74,8 @@ void init_RA(NR_UE_MAC_INST_t *mac,
   fapi_nr_config_request_t *cfg = &mac->phy_config.config_req;
 
   prach_resources->RA_PREAMBLE_BACKOFF = 0;
-  AssertFatal(nr_rach_ConfigCommon, "Cannot handle scenario without nr_rach_ConfigCommon\n");
+  AssertFatal(nr_rach_ConfigCommon && nr_rach_ConfigCommon->msg1_SubcarrierSpacing,
+              "Cannot handle yet the scenario without msg1_SubcarrierSpacing (L839)\n");
   NR_SubcarrierSpacing_t prach_scs = *nr_rach_ConfigCommon->msg1_SubcarrierSpacing;
   int n_prbs = get_N_RA_RB(prach_scs, mac->current_UL_BWP->scs);
   int start_prb = rach_ConfigGeneric->msg1_FrequencyStart + mac->current_UL_BWP->BWPStart;