diff --git a/library/GSM_RR_Types.ttcn b/library/GSM_RR_Types.ttcn
index bf650b2..66e49fa 100644
--- a/library/GSM_RR_Types.ttcn
+++ b/library/GSM_RR_Types.ttcn
@@ -989,6 +989,7 @@
 					     template GsmFrameNumber fn := ?,
 					     template TimingAdvance ta := ?,
 					     template PacketChannelDescription ch_desc := ?,
+					     template MobileAllocation ma := ?,
 					     template IaRestOctets rest := ?) := {
 		header := t_RrHeader(IMMEDIATE_ASSIGNMENT, ?),
 		payload := {
@@ -1004,7 +1005,7 @@
 				pkt_chan_desc := ch_desc,
 				req_ref := tr_compute_ReqRef(ra, fn),
 				timing_advance := ta,
-				mobile_allocation := ?,
+				mobile_allocation := ma,
 				rest_octets := rest
 			}
 		}