diff --git a/scripts/link-validator.conf b/scripts/link-validator.conf
index 4b76db717..8aafd6a83 100644
--- a/scripts/link-validator.conf
+++ b/scripts/link-validator.conf
@@ -27,6 +27,7 @@ site-link-validator {
     "https://github.com/"
     # MVN repository forbids access after a few requests
     "https://mvnrepository.com/artifact/"
+    # link checker is using HEAD requests, which isn't supported by the repo index
     "https://repo.akka.io/snapshots"
   ]