diff --git a/go.mod b/go.mod
index 2bea94a3fa4..902aab62678 100644
--- a/go.mod
+++ b/go.mod
@@ -212,5 +212,5 @@ replace github.com/hashicorp/go-hclog => github.com/hashicorp/go-hclog v0.12.2
 replace github.com/thanos-io/thanos v0.24.0 => github.com/thanos-io/thanos v0.19.1-0.20211229180107-bf14049d5745
 
 // Replace memberlist with our fork which includes some fixes that haven't been
-// merged upstream yet.
+// merged upstream yet: https://github.com/hashicorp/memberlist/pull/260
 replace github.com/hashicorp/memberlist v0.2.4 => github.com/grafana/memberlist v0.2.5-0.20211201083710-c7bc8e9df94b