diff --git a/services/Directory/data/Syntax.json b/services/Directory/data/Syntax.json
index bda3581b6..75214e8d0 100644
--- a/services/Directory/data/Syntax.json
+++ b/services/Directory/data/Syntax.json
@@ -197,5 +197,10 @@
     "id": 54,
     "name": "Hosts (0)",
     "url": "https://en.wikipedia.org/wiki/Hosts_(file)"
+  },
+  {
+    "id": 55,
+    "name": "AdGuard Superadvanced only",
+    "url": "https://kb.adguard.com/en/general/how-to-create-your-own-ad-filters"
   }
 ]