diff --git a/library/RLCMAC_CSN1_Templates.ttcn b/library/RLCMAC_CSN1_Templates.ttcn
index 1becddd..39f240b 100644
--- a/library/RLCMAC_CSN1_Templates.ttcn
+++ b/library/RLCMAC_CSN1_Templates.ttcn
@@ -284,7 +284,7 @@
 		pwr_ctrl := *
 	};
 
-	template EgprsAckNackDescriptionIE ts_EgprsAckNackDescriptionIE(template EgprsAckNackDescription andesc) := {
+	template (value) EgprsAckNackDescriptionIE ts_EgprsAckNackDescriptionIE(template (value) EgprsAckNackDescription andesc) := {
 		len_present := '1'B,
 		len := 0, /* Overwritten by RAW encoder */
 		acknack_desc := andesc