diff --git a/letsencrypt.sh b/letsencrypt.sh
index 624d811..9c9662b 100755
--- a/letsencrypt.sh
+++ b/letsencrypt.sh
@@ -1,6 +1,8 @@
 #!/bin/bash
 
-set -eu
+set -e
+set -u
+set -o pipefail
 
 . ./config.sh