diff --git a/nomad/state/state_store.go b/nomad/state/state_store.go
index edae5ad7662..2b0f9023e01 100644
--- a/nomad/state/state_store.go
+++ b/nomad/state/state_store.go
@@ -2225,8 +2225,8 @@ func (s *StateStore) CSIVolumesByPluginID(ws memdb.WatchSet, namespace, prefix,
 }
 
 // CSIVolumesByIDPrefix supports search. Caller should snapshot if it wants to
-// also denormalize the plugins. If using a prefix, the results will not use an
-// index.
+// also denormalize the plugins. If using a prefix with the wildcard namespace,
+// the results will not use the index prefix.
 func (s *StateStore) CSIVolumesByIDPrefix(ws memdb.WatchSet, namespace, volumeID string) (memdb.ResultIterator, error) {
 	if namespace == structs.AllNamespacesSentinel {
 		return s.csiVolumeByIDPrefixAllNamespaces(ws, volumeID)