diff --git a/.grenrc.js b/.grenrc.js
index 9f74ddaf2d..ab2eb1f793 100644
--- a/.grenrc.js
+++ b/.grenrc.js
@@ -34,6 +34,7 @@ module.exports = {
   ],
   ignoreTagsWith: [
     "Relearn",
+    "x",
   ],
   milestoneMatch: "{{tag_name}}",
   onlyMilestones: true,