diff --git a/src/modules/ims_registrar_scscf/registrar_notify.c b/src/modules/ims_registrar_scscf/registrar_notify.c
index 61e1430223a..fb95bb90327 100644
--- a/src/modules/ims_registrar_scscf/registrar_notify.c
+++ b/src/modules/ims_registrar_scscf/registrar_notify.c
@@ -1513,7 +1513,7 @@ static str param_sip_instance = {"+sip.instance", 13};
 static str param_3gpp_smsip = {"+g.3gpp.smsip", 13};
 static str param_3gpp_icsi_ref = {"+g.3gpp.icsi-ref", 16};
 
-int inline supported_param(str *param_name) {
+static int inline supported_param(str *param_name) {
 
     if (strncasecmp(param_name->s, param_q.s, param_name->len) == 0) {
         return 0;