diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index edec440..345935c 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -1012,6 +1012,23 @@
 	}
 }
 
+template (value) PDU_ML3_MS_NW ts_RRM_DTM_ASS_FAIL(OCT1 cause) := {
+	discriminator := '0110'B,
+	tiOrSkip := {
+		skipIndicator := '0000'B
+	},
+	msgs := {
+		rrm := {
+			dTM_AssignmentFailure := {
+				messageType := '01001000'B,
+				rR_Cause := {
+					valuePart := cause
+				}
+			}
+		}
+	}
+}
+
 template PDU_ML3_MS_NW tr_RRM_RR_STATUS(template OCT1 cause := ?) := {
 	discriminator := '0110'B,
 	tiOrSkip := {