diff --git a/src/config.js b/src/config.js
index 404e9d26..41131558 100644
--- a/src/config.js
+++ b/src/config.js
@@ -27,7 +27,7 @@ const modules = childProcess.execSync('lsmod', {
 })
 
 module.exports.WG_POST_UP = process.env.WG_POST_UP
-if (!!process.env.WG_POST_UP) {
+if (!process.env.WG_POST_UP) {
   module.exports.WG_POST_UP = `
   iptables -t nat -A POSTROUTING -s ${module.exports.WG_DEFAULT_ADDRESS.replace('x', '0')}/24 -o eth0 -j MASQUERADE;
   iptables -A INPUT -p udp -m udp --dport 51820 -j ACCEPT;