diff --git a/buildroot-external/scripts/hdd_image.sh b/buildroot-external/scripts/hdd_image.sh
index 1e3077e03..32587ad9d 100755
--- a/buildroot-external/scripts/hdd_image.sh
+++ b/buildroot-external/scripts/hdd_image.sh
@@ -32,7 +32,7 @@ function hassio_hdd_image() {
     local data_img="${1}/data.ext4"
     local hdd_img="${2}"
 
-    local loop_dev=$(losetup -f)
+    local loop_dev="/dev/mapper/$(losetup -f | cut -d'/' -f3)"
 
     # Write new image & GPT
     dd if=/dev/zero of=${hdd_img} bs=${IMAGE_SIZE} count=1