diff --git a/.ansible.d/setup.sh b/.ansible.d/setup.sh
index 8decd10..7636a0b 100755
--- a/.ansible.d/setup.sh
+++ b/.ansible.d/setup.sh
@@ -1,6 +1,6 @@
 #!/bin/bash
-ipnet = $1
-ip = ${ipnet:0:${#ipnet}-4}s
+ipnet=$1
+ip=${ipnet:0:${#ipnet}-3}
 until timeout 5 bash -c "</dev/tcp/$ip/22"; do
     ansible-playbook --key-file "~/.ssh/setuproot.key.priv" -i $ip,  ./.ansible.d/setup.yml
     sleep 1