diff --git a/library/IPA_Emulation.ttcnpp b/library/IPA_Emulation.ttcnpp
index df2b15e..a271f2d 100644
--- a/library/IPA_Emulation.ttcnpp
+++ b/library/IPA_Emulation.ttcnpp
@@ -203,7 +203,7 @@
 						local_host, local_port, 0, { tcp:={} });
 	if (not ispresent(res.connId)) {
 		setverdict(fail, "Could not connect IPA socket, check your configuration");
-		self.stop;
+		mtc.stop;
 	}
 	g_ipa_conn_id := res.connId;
 	g_ccm_pars := ccm_pars;
@@ -218,7 +218,7 @@
 						local_host, local_port, { tcp:={} });
 	if (not ispresent(res.connId)) {
 		setverdict(fail, "Could not listen IPA socket, check your configuration");
-		self.stop;
+		mtc.stop;
 	}
 	g_ipa_conn_id := res.connId;
 	g_ccm_pars := ccm_pars;
@@ -507,7 +507,7 @@
 				}
 				case else {
 					setverdict(fail, "Unknown mode");
-					self.stop;
+					mtc.stop;
 				}
 			}
 			}