diff --git a/package.json b/package.json
--- a/package.json
+++ b/package.json
@@ -100,7 +100,15 @@
         "editor.insertSpaces": true,
         "editor.tabSize": 2
       }
-    }
+    },
+    "semanticTokenScopes": [
+      {
+        "language": "nix",
+        "scopes": {
+          "*.withAttribute": ["markup.underline"]
+        }
+      }
+    ]
   },
   "devDependencies": {
     "@commitlint/cli": "*",