diff --git a/file/nodejs/xss-serialize-javascript.yaml b/file/nodejs/xss-serialize-javascript.yaml
index bd924bb702..011b11c797 100644
--- a/file/nodejs/xss-serialize-javascript.yaml
+++ b/file/nodejs/xss-serialize-javascript.yaml
@@ -15,7 +15,7 @@ file:
       - type: regex
         regex:
           - "require\\('serialize-javascript'\\)"
-          - "\\\$S\(\.\*?, \\{unsafe: true\\}\)"
+          - "\\$S\\(\\.\\*?, \\{unsafe: true\\}\\)"
         condition: or
 
       - type: regex