diff --git a/xorriso-dd-target/xorriso-dd-target b/xorriso-dd-target/xorriso-dd-target
index be59f3c1..a342f3bc 100755
--- a/xorriso-dd-target/xorriso-dd-target
+++ b/xorriso-dd-target/xorriso-dd-target
@@ -861,7 +861,7 @@ xdt_main()
     xdt_decide_writing || return "$?"
   fi
   
-  if test -n "$xdt_devs"
+  if test -n "$xdt_devs_named"
   then
     return $xdt_not_advised
   fi