diff --git a/vm/mikrotik-routeros.sh b/vm/mikrotik-routeros.sh
index ffe43608..93ca5403 100644
--- a/vm/mikrotik-routeros.sh
+++ b/vm/mikrotik-routeros.sh
@@ -251,11 +251,16 @@ nfs | dir)
   DISK_REF="$VMID/"
   DISK_IMPORT="-format qcow2"
   ;;
-btrfs | zfspool)
-  DISK_EXT=""
+btrfs)
+  DISK_EXT=".raw"
   DISK_REF="$VMID/"
   DISK_IMPORT="-format raw"
   ;;
+zfspool)
+  DISK_EXT=""
+  DISK_REF=""
+  DISK_IMPORT="-format raw"
+  ;;
 esac
 
 DISK_VAR="vm-${VMID}-disk-0${DISK_EXT:-}"