diff --git a/srsenb/rr.conf.example b/srsenb/rr.conf.example
index 469ac0332..3dd3fee4c 100644
--- a/srsenb/rr.conf.example
+++ b/srsenb/rr.conf.example
@@ -59,7 +59,7 @@ cell_list =
     pci = 1;
     // root_seq_idx = 204;
     dl_earfcn = 3400;
-    ul_earfcn = 21400;
+    //ul_earfcn = 21400;
     ho_active = false;
 
     // CA cells
diff --git a/srsenb/src/enb_cfg_parser.cc b/srsenb/src/enb_cfg_parser.cc
index ab1127cd4..e53d3c956 100644
--- a/srsenb/src/enb_cfg_parser.cc
+++ b/srsenb/src/enb_cfg_parser.cc
@@ -714,7 +714,7 @@ static int parse_cell_list(all_args_t* args, rrc_cfg_t* rrc_cfg, Setting& root)
     HANDLEPARSERCODE(parse_required_field(cell_cfg.pci, cellroot, "pci"));
     cell_cfg.pci = cell_cfg.pci % SRSLTE_NUM_PCI;
     HANDLEPARSERCODE(parse_required_field(cell_cfg.dl_earfcn, cellroot, "dl_earfcn"));
-    HANDLEPARSERCODE(parse_required_field(cell_cfg.ul_earfcn, cellroot, "ul_earfcn"));
+    cell_cfg.ul_earfcn = cellroot["ul_earfcn"]; // will be derived from DL EARFCN If not set
     parse_default_field(
         cell_cfg.root_seq_idx, cellroot, "root_seq_idx", rrc_cfg->sibs[1].sib2().rr_cfg_common.prach_cfg.root_seq_idx);