diff --git a/overlay/usr/local/bin/healthcheck b/overlay/usr/local/bin/healthcheck
index a29bb9a..78ebb77 100755
--- a/overlay/usr/local/bin/healthcheck
+++ b/overlay/usr/local/bin/healthcheck
@@ -1,6 +1,6 @@
 #!/usr/bin/env sh
 
-set -e
+set -eo pipefail
 
 URL=http://127.0.0.1:8080/alive