diff --git a/rootfs/etc/s6-overlay/s6-rc.d/confd/up b/rootfs/etc/s6-overlay/s6-rc.d/confd/up
index d5d1dcd..ed5c333 100644
--- a/rootfs/etc/s6-overlay/s6-rc.d/confd/up
+++ b/rootfs/etc/s6-overlay/s6-rc.d/confd/up
@@ -1,2 +1,2 @@
-#!/command/execlineb -P
+#!/command/with-contenv sh
 confd -onetime -backend env