diff --git a/hosts/pi/README.md b/hosts/pi/README.md
index aebe82b..84e2bf2 100644
--- a/hosts/pi/README.md
+++ b/hosts/pi/README.md
@@ -11,7 +11,7 @@ Raspberry Pi 4
 ### Disks
 Device | Partitions _(filesystem, usage)_
 --- | ---
-SD card | `/dev/sda1` (ext4, NixOS Root)
+SD card | `/dev/mmcblk0` (ext4, NixOS Root)
 
 ### Networks
 - DHCP on `10.0.1.0/24` subnet.