diff --git a/tools/arkmanager b/tools/arkmanager
index afb13ac..a74ce69 100755
--- a/tools/arkmanager
+++ b/tools/arkmanager
@@ -1646,7 +1646,7 @@ useConfig() {
       break
     fi
   done
-  if [ -a "$configfile" ]; then
+  if [ -z "$configfile" ]; then
     echo "Error: config file ${configfile} does not exist"
     exit 1
   fi