1 files changed, 1 insertions, 1 deletions
diff --git a/index.mdwn b/index.mdwn
index c2cfcb1..126f461 100644
--- a/index.mdwn
+++ b/index.mdwn
@@ -60,7 +60,7 @@ For a multi device filesystem, with sda1 caching sdb1:
 
     bcachefs format /dev/sd[ab]1 \
         --foreground_target /dev/sda1 \
-        --promote-target /dev/sda1 \
+        --promote_target /dev/sda1 \
         --background_target /dev/sdb1
     mount -t bcachefs /dev/sda1:/dev/sdb1 /mnt