diff --git a/library/BSSMAP_Templates.ttcn b/library/BSSMAP_Templates.ttcn
index 54e3f79..6e7813f 100644
--- a/library/BSSMAP_Templates.ttcn
+++ b/library/BSSMAP_Templates.ttcn
@@ -368,6 +368,22 @@
 	}
 }
 
+template PDU_BSSAP tr_BSSMAP_AssignmentFail modifies tr_BSSAP_BSSMAP := {
+	pdu := {
+		bssmap := {
+			assignmentFailure := {
+				messageType := '03'O,	/* overwritten */
+				rR_Cause := *,
+				circuitPool := *,
+				circuitPoolList := *,
+				talkerPriority := *,
+				codecList := *
+			}
+		}
+	}
+}
+
+
 template (value) PDU_BSSAP ts_BSSMAP_ClearCommand(BssmapCause cause)
 modifies ts_BSSAP_BSSMAP := {
 	pdu := {