diff --git a/clone_vm.sh b/clone_vm.sh
index a567a75..572f7bb 100755
--- a/clone_vm.sh
+++ b/clone_vm.sh
@@ -29,7 +29,7 @@ if [ -z $a ] || [ $a == "Y" ] || [ $a == "y" ]; then
                 destination=${2%/}
                 sleep 0.5; echo "INFO: Preflight checks good. Commencing cloning process."
                 for disk in $(find "$source" -maxdepth 1 -type f | grep ".vmdk" | grep -v "flat.vmdk"); do
-                  if [ -z "${disk##*delta*}" ]; then
+                  if [ -n "${disk##*delta*}" ]; then
                       echo "ERROR: You little rebel did not remove all snapshots. Failsave exit!"; exit 1
                   fi
                   #try the following to move a specific snapshot