diff --git a/lib/filters.js b/lib/filters.js
index 945a6011..fb6b435a 100644
--- a/lib/filters.js
+++ b/lib/filters.js
@@ -74,7 +74,7 @@ export const refFilter = (data, { domain, domainOnly, raw }) => {
 
       if (protocol.startsWith('http')) {
         const path = removeTrailingSlash(pathname);
-        const referrer = searchParams.get('ref');
+        const referrer = searchParams.get('referrer');
         const query = referrer ? `?referrer=${referrer}` : '';
 
         return removeTrailingSlash(`${removeWWW(hostname)}${path}`) + query;