diff --git a/src/modules/sub/utils.js b/src/modules/sub/utils.js
index a6071c28..8f8678d3 100644
--- a/src/modules/sub/utils.js
+++ b/src/modules/sub/utils.js
@@ -114,12 +114,13 @@ export function checkJSONPost(obj) {
 export function getIP(req) {
     const strippedIP = req.ip.replace(/^::ffff:/, '');
     const ip = ipaddr.parse(strippedIP);
-    if (ip.kind() === 'ipv4')
+    if (ip.kind() === 'ipv4') {
         return strippedIP;
+    }
 
-    const PREFIX = 56;
+    const prefix = 56;
     const v6Bytes = ip.toByteArray();
-          v6Bytes.fill(0, PREFIX / 8);
+          v6Bytes.fill(0, prefix / 8);
 
     return ipaddr.fromByteArray(v6Bytes).toString();
 }