diff --git a/ggsn_tests/GTP_CodecPort.ttcn b/ggsn_tests/GTP_CodecPort.ttcn
index 561e5b9..7a3e755 100644
--- a/ggsn_tests/GTP_CodecPort.ttcn
+++ b/ggsn_tests/GTP_CodecPort.ttcn
@@ -29,10 +29,12 @@
 	type port GTPC_PT message {
 		out	Gtp1cUnitdata;
 		in	Gtp1cUnitdata,
+			ASP_ConnId_ReadyToRelease,
 			ASP_Event;
 	} with { extension "user IPL4asp_PT
 		out(Gtp1cUnitdata -> ASP_SendTo: function(f_enc_Gtp1cUD))
 		in(ASP_RecvFrom -> Gtp1cUnitdata: function(f_dec_Gtp1cUD);
+		   ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple;
 		   ASP_Event -> ASP_Event: simple)" }
 
 	private function f_enc_Gtp1cUD(in Gtp1cUnitdata in_ud, out ASP_SendTo out_ud) {
@@ -55,10 +57,12 @@
 	type port GTPU_PT message {
 		out	Gtp1uUnitdata;
 		in	Gtp1uUnitdata,
+			ASP_ConnId_ReadyToRelease,
 			ASP_Event;
 	} with { extension "user IPL4asp_PT
 		out(Gtp1uUnitdata -> ASP_SendTo: function(f_enc_Gtp1uUD))
 		in(ASP_RecvFrom -> Gtp1uUnitdata: function(f_dec_Gtp1uUD);
+		   ASP_ConnId_ReadyToRelease -> ASP_ConnId_ReadyToRelease: simple;
 		   ASP_Event -> ASP_Event: simple)" }
 
 	function f_enc_Gtp1uUD(in Gtp1uUnitdata in_ud, out ASP_SendTo out_ud) {