diff --git a/.pug-lintrc b/.pug-lintrc
index 00a391d65..dca69f86f 100644
--- a/.pug-lintrc
+++ b/.pug-lintrc
@@ -1,5 +1,6 @@
 {
   "extends": "clock",
+  "validateExtensions": null,
   "validateIndentation": null,
   "disallowIdLiterals": null,
   "disallowAttributeInterpolation": null