diff --git a/library/GTPv2_CodecPort.ttcn b/library/GTPv2_CodecPort.ttcn
index 1f08f19..e9cf57e 100644
--- a/library/GTPv2_CodecPort.ttcn
+++ b/library/GTPv2_CodecPort.ttcn
@@ -12,13 +12,13 @@
 module GTPv2_CodecPort {
 	import from IPL4asp_PortType all;
 	import from IPL4asp_Types all;
-	import from GTPv2C_Types all;
+	import from GTPv2_Types all;
 
 	/* identifies a remote peer (sender or receiver) */
 	type record GtpPeer {
 		ConnectionId	connId,
 		HostName	remName,
-		PortNumber	remPort
+		IPL4asp_Types.PortNumber	remPort
 	}
 
 	/* Decoded GTP2C (Control Plane), used in send and receive direction */