diff --git a/test-environments/browser-umd-prod/test.sh b/test-environments/browser-umd-prod/test.sh
index 8b1f932..bb788bf 100755
--- a/test-environments/browser-umd-prod/test.sh
+++ b/test-environments/browser-umd-prod/test.sh
@@ -1,4 +1,4 @@
 #!/bin/bash
-set -x
+set -ex
 lein do clean, doo chrome-headless prod-test once
 test -f target/cljsbuild/prod-test/main.js
diff --git a/test-environments/browser-umd-react-16/figwheel.sh b/test-environments/browser-umd-react-16/figwheel.sh
index c1668bb..a81e671 100755
--- a/test-environments/browser-umd-react-16/figwheel.sh
+++ b/test-environments/browser-umd-react-16/figwheel.sh
@@ -1,3 +1,3 @@
 #!/bin/bash
-set -x
+set -ex
 lein with-profile react-16 figwheel