diff --git a/library/RLCMAC_Templates.ttcn b/library/RLCMAC_Templates.ttcn
index 3b1e40a..738ee97 100644
--- a/library/RLCMAC_Templates.ttcn
+++ b/library/RLCMAC_Templates.ttcn
@@ -772,7 +772,8 @@
 	}
 
 	/* Template for Uplink Control ACK */
-	template RlcmacUlBlock ts_RLCMAC_CTRL_ACK(GprsTlli tlli, CtrlAck ack := MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN) := {
+	template (value) RlcmacUlBlock
+	ts_RLCMAC_CTRL_ACK(GprsTlli tlli, CtrlAck ack := MS_RCVD_TWO_RLC_SAME_RTI_DIFF_RBSN) := {
 		ctrl := {
 			mac_hdr := t_RLCMAC_UlMacCtrlH(MAC_PT_RLCMAC_NO_OPT),
 			payload := {