diff --git a/doc/recovery.md b/doc/recovery.md
index 4e7cc4abf..2c6977710 100644
--- a/doc/recovery.md
+++ b/doc/recovery.md
@@ -1,5 +1,5 @@
 ## deploying to SD card
-- build a toplevel config: `nix build '.#hostSystems.moby'`
+- build a toplevel config: `nix build '.#hosts.moby.img'`
 - mount a system:
   - `mkdir -p root/{nix,boot}`
   - `mount /dev/sdX1 root/boot`