diff --git a/root/etc/s6-overlay/s6-rc.d/cron/finish b/root/etc/s6-overlay/s6-rc.d/cron/finish
index 767f815..e6c6dd3 100644
--- a/root/etc/s6-overlay/s6-rc.d/cron/finish
+++ b/root/etc/s6-overlay/s6-rc.d/cron/finish
@@ -1 +1,4 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
 echo "$e" > /run/s6-linux-init-container-results/exitcode
\ No newline at end of file
diff --git a/root/etc/s6-overlay/s6-rc.d/logs/finish b/root/etc/s6-overlay/s6-rc.d/logs/finish
index 767f815..e6c6dd3 100644
--- a/root/etc/s6-overlay/s6-rc.d/logs/finish
+++ b/root/etc/s6-overlay/s6-rc.d/logs/finish
@@ -1 +1,4 @@
+#!/command/with-contenv bash
+# shellcheck shell=bash
+
 echo "$e" > /run/s6-linux-init-container-results/exitcode
\ No newline at end of file