diff --git a/main.go b/main.go
index 4245fff..8f03d58 100644
--- a/main.go
+++ b/main.go
@@ -355,7 +355,7 @@ func (d *ofsDriver) Mount(r *volume.MountRequest) (*volume.MountResponse, error)
 											// PERF: We allow mounting just subset of snapshots for performance reasons (required RAM)
 											var filteredSnapshots map[string]bool
 											if len(strings.TrimSpace(v.SnapshotsFilter)) != 0 {
-												if a, err := generateSnapshotsFromRulesForNow(strings.TrimSpace(v.SnapshotsFilter)); err != nil {
+												if a, err := generateSnapshotsFromRulesForNow(strings.TrimSpace(v.SnapshotsFilter)); err == nil {
 													filteredSnapshots = a
 													log.WithFields(log.Fields{"name": r.Name, "invalidFilter": a}).Trace("Snapshots filter.")
 												} else {