diff --git a/perl/NGCP/Rtpengine/AutoTest.pm b/perl/NGCP/Rtpengine/AutoTest.pm
index 696800090..add50d0ea 100644
--- a/perl/NGCP/Rtpengine/AutoTest.pm
+++ b/perl/NGCP/Rtpengine/AutoTest.pm
@@ -325,6 +325,8 @@ sub terminate {
 
 	print "hint: rtpe stdout output is at $rtpe_stdout\n";
 	print "hint: rtpe stderr output is at $rtpe_stderr\n";
+	print "last lines:\n";
+	system(qw(tail -n 40), $rtpe_stderr);
 
 	die "error: $msg\n";
 }