diff --git a/library/L3_Templates.ttcn b/library/L3_Templates.ttcn
index 4398cea..ffabff4 100644
--- a/library/L3_Templates.ttcn
+++ b/library/L3_Templates.ttcn
@@ -1859,7 +1859,7 @@
 	msgs := {
 		gprs_sm := {
 			activatePDPContextReject := {
-				messageType := '01001111'B,
+				messageType := '01000011'B,
 				smCause := cause,
 				protocolConfigOpts := *,
 				backOffTimer := *,