diff --git a/recipes-diya/diya-overlay/files/confd b/recipes-diya/diya-overlay/files/confd
index 0cface0..9309c34 100644
--- a/recipes-diya/diya-overlay/files/confd
+++ b/recipes-diya/diya-overlay/files/confd
@@ -17,7 +17,7 @@ case "$1" in
         fi
         if [ -f "/boot/home_partition_should_be_formated" ]; then
             echo "Trying to format the home partition"
-            umount /dev/mmcblk0p3
+            umount /dev/mmcblk0p4
             yes | mkfs.ext4 /dev/mmcblk0p4
             mount /dev/mmcblk0p4 /home
             mkdir -p /home/diya