diff --git a/.github/travis_testsuite_1.sh b/.github/travis_testsuite_1.sh
index 2816d47e..8f385752 100644
--- a/.github/travis_testsuite_1.sh
+++ b/.github/travis_testsuite_1.sh
@@ -1,6 +1,7 @@
 #! /bin/bash
 ## vim:set ts=4 sw=4 et:
 set -e; set -o pipefail
+set -x
 
 # Support for Travis CI -- https://travis-ci.org/upx/upx/builds
 # Copyright (C) Markus Franz Xaver Johannes Oberhumer