diff --git a/srsenb/hdr/stack/mac/mac.h b/srsenb/hdr/stack/mac/mac.h
index 866c02979..c090e1fbe 100644
--- a/srsenb/hdr/stack/mac/mac.h
+++ b/srsenb/hdr/stack/mac/mac.h
@@ -139,6 +139,7 @@ private:
   void                                      prealloc_ue(uint32_t nof_ue);
 
   uint8_t* assemble_rar(sched_interface::dl_sched_rar_grant_t* grants,
+                        uint32_t                               enb_cc_idx,
                         uint32_t                               nof_grants,
                         uint32_t                               rar_idx,
                         uint32_t                               pdu_len,
@@ -146,7 +147,7 @@ private:
 
   const static int             rar_payload_len = 128;
   std::array<srslte::rar_pdu, sched_interface::MAX_RAR_LIST> rar_pdu_msg;
-  srslte::byte_buffer_t        rar_payload[sched_interface::MAX_RAR_LIST];
+  srslte::byte_buffer_t rar_payload[SRSLTE_MAX_CARRIERS][sched_interface::MAX_RAR_LIST];
 
   const static int NOF_BCCH_DLSCH_MSG = sched_interface::MAX_SIBS;
 
diff --git a/srsenb/src/stack/mac/mac.cc b/srsenb/src/stack/mac/mac.cc
index a5ba36112..eafa34bf5 100644
--- a/srsenb/src/stack/mac/mac.cc
+++ b/srsenb/src/stack/mac/mac.cc
@@ -661,6 +661,7 @@ int mac::get_dl_sched(uint32_t tti_tx_dl, dl_sched_list_t& dl_sched_res_list)
 
       // Assemble PDU
       dl_sched_res->pdsch[n].data[0] = assemble_rar(sched_result.rar[i].msg3_grant.data(),
+                                                    enb_cc_idx,
                                                     sched_result.rar[i].msg3_grant.size(),
                                                     i,
                                                     sched_result.rar[i].tbs,
@@ -830,6 +831,7 @@ int mac::get_mch_sched(uint32_t tti, bool is_mcch, dl_sched_list_t& dl_sched_res
 }
 
 uint8_t* mac::assemble_rar(sched_interface::dl_sched_rar_grant_t* grants,
+                           uint32_t                               enb_cc_idx,
                            uint32_t                               nof_grants,
                            uint32_t                               rar_idx,
                            uint32_t                               pdu_len,
@@ -838,8 +840,8 @@ uint8_t* mac::assemble_rar(sched_interface::dl_sched_rar_grant_t* grants,
   uint8_t grant_buffer[64] = {};
   if (pdu_len < rar_payload_len && rar_idx < rar_pdu_msg.size()) {
     srslte::rar_pdu* pdu = &rar_pdu_msg[rar_idx];
-    rar_payload[rar_idx].clear();
-    pdu->init_tx(&rar_payload[rar_idx], pdu_len);
+    rar_payload[enb_cc_idx][rar_idx].clear();
+    pdu->init_tx(&rar_payload[enb_cc_idx][rar_idx], pdu_len);
     for (uint32_t i = 0; i < nof_grants; i++) {
       srslte_dci_rar_pack(&grants[i].grant, grant_buffer);
       if (pdu->new_subh()) {
@@ -849,8 +851,8 @@ uint8_t* mac::assemble_rar(sched_interface::dl_sched_rar_grant_t* grants,
         pdu->get()->set_sched_grant(grant_buffer);
       }
     }
-    if (pdu->write_packet(rar_payload[rar_idx].msg)) {
-      return rar_payload[rar_idx].msg;
+    if (pdu->write_packet(rar_payload[enb_cc_idx][rar_idx].msg)) {
+      return rar_payload[enb_cc_idx][rar_idx].msg;
     }
   }