diff --git a/options.go b/options.go
index 7440627e87..39dc227cff 100644
--- a/options.go
+++ b/options.go
@@ -186,6 +186,9 @@ func Identity(sk crypto.PrivKey) Option {
 }
 
 // ConnectionManager configures libp2p to use the given connection manager.
+//
+// The current "standard" connection manager lives in github.com/libp2p/go-libp2p-connmgr. See
+// https://pkg.go.dev/github.com/libp2p/go-libp2p-connmgr?utm_source=godoc#NewConnManager.
 func ConnectionManager(connman connmgr.ConnManager) Option {
 	return func(cfg *Config) error {
 		if cfg.ConnManager != nil {