diff --git a/library/TRXC_CodecPort.ttcn b/library/TRXC_CodecPort.ttcn
index 774b674..09b2977 100644
--- a/library/TRXC_CodecPort.ttcn
+++ b/library/TRXC_CodecPort.ttcn
@@ -81,6 +81,7 @@
 		}
 	[] T.timeout {
 		setverdict(fail, "Timeout waiting for ", tr, " on ", pt);
+		mtc.stop;
 		}
 	}
 	return rf.msg;