diff --git a/data/data.min.json b/data/data.min.json
index 0ad8cd5..5651ec2 100644
--- a/data/data.min.json
+++ b/data/data.min.json
@@ -21,7 +21,7 @@
                 "_encoding",
                 "smid",
                 "field-lbr_brands_browse-bin",
-                "ref[\\_]?"
+                "ref_?"
             ],
             "exceptions": [
                 ".*(amazon\\.).*(\\/gp).*\\/redirector.html\\/.*"