diff --git a/openair1/SIMULATION/NR_PHY/dlsim.c b/openair1/SIMULATION/NR_PHY/dlsim.c
index d8eb8849a3..cc71c20e22 100644
--- a/openair1/SIMULATION/NR_PHY/dlsim.c
+++ b/openair1/SIMULATION/NR_PHY/dlsim.c
@@ -97,6 +97,16 @@ int8_t nr_mac_rrc_data_ind_ue(const module_id_t     module_id,
   return 0;
 }
 
+int8_t nr_mac_rrc_data_req_ue(const module_id_t Mod_idP,
+                              const int         CC_id,
+                              const uint8_t     gNB_id,
+                              const frame_t     frameP,
+                              const rb_id_t     Srb_id,
+                              uint8_t           *buffer_pP)
+{
+  return 0;
+}
+
 void
 rrc_data_ind(
   const protocol_ctxt_t *const ctxt_pP,
@@ -172,10 +182,6 @@ int is_x2ap_enabled(void)
   return 0;
 }
 
-int8_t nr_rrc_ue_decode_NR_SIB1_Message(module_id_t module_id, uint8_t gNB_index, uint8_t *const bufferP, const uint8_t buffer_len) {
-  return 0;
-}
-
 // needed for some functions
 openair0_config_t openair0_cfg[MAX_CARDS];
 void update_ptrs_config(NR_CellGroupConfig_t *secondaryCellGroup, uint16_t *rbSize, uint8_t *mcsIndex,int8_t *ptrs_arg);
diff --git a/openair1/SIMULATION/NR_PHY/prachsim.c b/openair1/SIMULATION/NR_PHY/prachsim.c
index 941a06128f..d49ca70bea 100644
--- a/openair1/SIMULATION/NR_PHY/prachsim.c
+++ b/openair1/SIMULATION/NR_PHY/prachsim.c
@@ -127,13 +127,19 @@ nr_rrc_gNB_process_GTPV1U_CREATE_TUNNEL_RESP(
 
 int8_t nr_mac_rrc_data_ind_ue(const module_id_t module_id, const int CC_id, const uint8_t gNB_index, const int8_t channel, const uint8_t* pduP, const sdu_size_t pdu_len) {return 0;}
 
-// Dummy function to avoid linking error at compilation of nr-prachsim
-int is_x2ap_enabled(void)
+int8_t nr_mac_rrc_data_req_ue(const module_id_t Mod_idP,
+                              const int         CC_id,
+                              const uint8_t     gNB_id,
+                              const frame_t     frameP,
+                              const rb_id_t     Srb_id,
+                              uint8_t           *buffer_pP)
 {
   return 0;
 }
 
-int8_t nr_rrc_ue_decode_NR_SIB1_Message(module_id_t module_id, uint8_t gNB_index, uint8_t *const bufferP, const uint8_t buffer_len) {
+// Dummy function to avoid linking error at compilation of nr-prachsim
+int is_x2ap_enabled(void)
+{
   return 0;
 }
 
diff --git a/openair1/SIMULATION/NR_PHY/ulsim.c b/openair1/SIMULATION/NR_PHY/ulsim.c
index fd2e1dc0b7..2bb7c0a038 100644
--- a/openair1/SIMULATION/NR_PHY/ulsim.c
+++ b/openair1/SIMULATION/NR_PHY/ulsim.c
@@ -154,7 +154,13 @@ int is_x2ap_enabled(void)
   return 0;
 }
 
-int8_t nr_rrc_ue_decode_NR_SIB1_Message(module_id_t module_id, uint8_t gNB_index, uint8_t *const bufferP, const uint8_t buffer_len) {
+int8_t nr_mac_rrc_data_req_ue(const module_id_t Mod_idP,
+                              const int         CC_id,
+                              const uint8_t     gNB_id,
+                              const frame_t     frameP,
+                              const rb_id_t     Srb_id,
+                              uint8_t           *buffer_pP)
+{
   return 0;
 }