diff --git a/library/PCUIF_CodecPort.ttcn b/library/PCUIF_CodecPort.ttcn
index c642202..389c5ca 100644
--- a/library/PCUIF_CodecPort.ttcn
+++ b/library/PCUIF_CodecPort.ttcn
@@ -70,14 +70,14 @@
 			} else {
 				setverdict(fail, "Error connecting to PCU socket");
 			}
-			self.stop;
+			mtc.stop;
 		} else {
 			return res.id;
 		}
 		}
 	[] T.timeout {
 		setverdict(fail, "Timeout connecting to PCU socket");
-		self.stop;
+		mtc.stop;
 		}
 	}
 	return -23;
@@ -106,7 +106,7 @@
 	[] pt.receive { repeat; }
 	[] T.timeout {
 		setverdict(fail, "Timeout waiting for PCU DATA.cnf");
-		self.stop;
+		mtc.stop;
 		}
 	}
 	return 0;