diff --git a/openair3/NAS/NR_UE/nr_nas_msg_sim.c b/openair3/NAS/NR_UE/nr_nas_msg_sim.c
index 08899a0539a0d33a4ab36b6f841b7c33622e0aba..f83f1138b6058ba073e1a124a8725fab158b0daa 100644
--- a/openair3/NAS/NR_UE/nr_nas_msg_sim.c
+++ b/openair3/NAS/NR_UE/nr_nas_msg_sim.c
@@ -59,7 +59,7 @@ uint32_t  registration_request_len;
 extern char *baseNetAddress;
 extern uint16_t NB_UE_INST;
 static nr_ue_nas_t nr_ue_nas = {0};
-nr_nas_msg_snssai_t nas_allowed_nssai[8];
+static nr_nas_msg_snssai_t nas_allowed_nssai[8];
 
 static int nas_protected_security_header_encode(
   char                                       *buffer,
diff --git a/openair3/NAS/NR_UE/nr_nas_msg_sim.h b/openair3/NAS/NR_UE/nr_nas_msg_sim.h
index 83222b7fd5ee28d72b30c00388fd9d476362fa47..b1a1d25d1e2a6a58d5923854c4d71d6712db4516 100644
--- a/openair3/NAS/NR_UE/nr_nas_msg_sim.h
+++ b/openair3/NAS/NR_UE/nr_nas_msg_sim.h
@@ -81,8 +81,6 @@ typedef struct {
   int hplmn_sd;
 } nr_nas_msg_snssai_t;
 
-extern nr_nas_msg_snssai_t nas_allowed_nssai[8];
-
 /* Security Key for SA UE */
 typedef struct {
   uint8_t kausf[32];