diff --git a/openair2/F1AP/lib/f1ap_interface_management.c b/openair2/F1AP/lib/f1ap_interface_management.c
index 38de5e4dcc..55b4972d4b 100644
--- a/openair2/F1AP/lib/f1ap_interface_management.c
+++ b/openair2/F1AP/lib/f1ap_interface_management.c
@@ -423,7 +423,7 @@ static F1AP_ProtocolExtensionContainer_11023P34_t *write_slice_info(int num_ssi,
 /**
  * @brief F1AP Setup Request memory management
  */
-void free_f1ap_cell(const f1ap_served_cell_info_t *info, const f1ap_gnb_du_system_info_t *sys_info)
+static void free_f1ap_cell(const f1ap_served_cell_info_t *info, const f1ap_gnb_du_system_info_t *sys_info)
 {
   if (sys_info) {
     free(sys_info->mib);
@@ -886,7 +886,7 @@ bool decode_f1ap_setup_request(const F1AP_F1AP_PDU_t *pdu, f1ap_setup_req_t *out
   return true;
 }
 
-f1ap_served_cell_info_t copy_f1ap_served_cell_info(const f1ap_served_cell_info_t *src)
+static f1ap_served_cell_info_t copy_f1ap_served_cell_info(const f1ap_served_cell_info_t *src)
 {
   f1ap_served_cell_info_t dst = {
     .plmn = src->plmn,
diff --git a/openair2/F1AP/lib/f1ap_interface_management.h b/openair2/F1AP/lib/f1ap_interface_management.h
index 56f6579f2f..942a9932ad 100644
--- a/openair2/F1AP/lib/f1ap_interface_management.h
+++ b/openair2/F1AP/lib/f1ap_interface_management.h
@@ -46,8 +46,6 @@ bool decode_f1ap_setup_request(const struct F1AP_F1AP_PDU *pdu, f1ap_setup_req_t
 f1ap_setup_req_t cp_f1ap_setup_request(const f1ap_setup_req_t *msg);
 bool eq_f1ap_setup_request(const f1ap_setup_req_t *a, const f1ap_setup_req_t *b);
 void free_f1ap_setup_request(const f1ap_setup_req_t *msg);
-f1ap_served_cell_info_t copy_f1ap_served_cell_info(const f1ap_served_cell_info_t *src);
-void free_f1ap_cell(const f1ap_served_cell_info_t *info, const f1ap_gnb_du_system_info_t *sys_info);
 
 /* F1 Setup Response */
 struct F1AP_F1AP_PDU *encode_f1ap_setup_response(const f1ap_setup_resp_t *msg);
diff --git a/openair2/RRC/NR/rrc_gNB_du.c b/openair2/RRC/NR/rrc_gNB_du.c
index f50c7a2c6e..f2e66257f6 100644
--- a/openair2/RRC/NR/rrc_gNB_du.c
+++ b/openair2/RRC/NR/rrc_gNB_du.c
@@ -53,12 +53,12 @@
 #include "utils.h"
 #include "xer_encoder.h"
 
-int get_dl_band(const struct f1ap_served_cell_info_t *cell_info)
+static int get_dl_band(const struct f1ap_served_cell_info_t *cell_info)
 {
   return cell_info->mode == F1AP_MODE_TDD ? cell_info->tdd.freqinfo.band : cell_info->fdd.dl_freqinfo.band;
 }
 
-int get_ssb_scs(const struct f1ap_served_cell_info_t *cell_info)
+static int get_ssb_scs(const struct f1ap_served_cell_info_t *cell_info)
 {
   return cell_info->mode == F1AP_MODE_TDD ? cell_info->tdd.tbw.scs : cell_info->fdd.dl_tbw.scs;
 }
diff --git a/openair2/RRC/NR/rrc_gNB_du.h b/openair2/RRC/NR/rrc_gNB_du.h
index ce033e91e8..8942af9af5 100644
--- a/openair2/RRC/NR/rrc_gNB_du.h
+++ b/openair2/RRC/NR/rrc_gNB_du.h
@@ -42,8 +42,6 @@ struct nr_rrc_du_container_t *get_du_for_ue(struct gNB_RRC_INST_s *rrc, uint32_t
 
 void dump_du_info(const struct gNB_RRC_INST_s *rrc, FILE *f);
 
-int get_dl_band(const struct f1ap_served_cell_info_t *cell_info);
-int get_ssb_scs(const struct f1ap_served_cell_info_t *cell_info);
 int get_ssb_arfcn(const struct nr_rrc_cell_container_t *cell);
 
 struct nr_rrc_du_container_t *find_target_du(struct gNB_RRC_INST_s *rrc, sctp_assoc_t source_assoc_id);