diff --git a/library/RAN_Emulation.ttcnpp b/library/RAN_Emulation.ttcnpp
index c1dc036..f410427 100644
--- a/library/RAN_Emulation.ttcnpp
+++ b/library/RAN_Emulation.ttcnpp
@@ -720,7 +720,7 @@
 
 template BIT4 t_ML3_DISC_CC_MM_SS := ('0011'B, '0101'B, '1011'B);
 
-private function f_L3_is_rr(template octetstring l3) return boolean {
+function f_L3_is_rr(template octetstring l3) return boolean {
 	if (not isvalue(l3)) {
 		return false;
 	}
@@ -773,7 +773,7 @@
 }
 
 /* patch N(SD) into enc_l3, according to 24.007 11.2.3.2 */
-function f_ML3_patch_seq(inout ConnectionData cd, in PDU_ML3_MS_NW dtap, inout octetstring enc_l3) {
+private function f_ML3_patch_seq(inout ConnectionData cd, in PDU_ML3_MS_NW dtap, inout octetstring enc_l3) {
 	var integer n_sd_idx := f_ML3_n_sd_idx(dtap);
 	if (n_sd_idx < 0) {
 		return;