diff --git a/jetstream/kv.go b/jetstream/kv.go
index ae892b4d7..91a1bdcef 100644
--- a/jetstream/kv.go
+++ b/jetstream/kv.go
@@ -123,6 +123,7 @@ type (
 
 		// Update will update the value if the latest revision matches.
 		// If the provided revision is not the latest, Update will return an error.
+		// Update also resets the TTL associated with the key (if any).
 		Update(ctx context.Context, key string, value []byte, revision uint64) (uint64, error)
 
 		// Delete will place a delete marker and leave all revisions. A history
diff --git a/kv.go b/kv.go
index 4e7a3fdec..3cade1f82 100644
--- a/kv.go
+++ b/kv.go
@@ -54,6 +54,7 @@ type KeyValue interface {
 	// Create will add the key/value pair iff it does not exist.
 	Create(key string, value []byte) (revision uint64, err error)
 	// Update will update the value iff the latest revision matches.
+	// Update also resets the TTL associated with the key (if any).
 	Update(key string, value []byte, last uint64) (revision uint64, err error)
 	// Delete will place a delete marker and leave all revisions.
 	Delete(key string, opts ...DeleteOpt) error