diff --git a/cmd/config.go b/cmd/config.go
index f7fb8c7..eb67a39 100644
--- a/cmd/config.go
+++ b/cmd/config.go
@@ -45,5 +45,5 @@ type SSHStdinServerConnectDescr struct {
 }
 
 type PrunePolicy interface {
-	Prune(fs zfs.DatasetPath, versions []zfs.FilesystemVersion) (keep, remote []zfs.FilesystemVersion, err error)
+	Prune(fs *zfs.DatasetPath, versions []zfs.FilesystemVersion) (keep, remove []zfs.FilesystemVersion, err error)
 }
diff --git a/cmd/config_prune_grid.go b/cmd/config_prune_grid.go
index b9a8883..2859cb3 100644
--- a/cmd/config_prune_grid.go
+++ b/cmd/config_prune_grid.go
@@ -29,7 +29,7 @@ func (a retentionGridAdaptor) LessThan(b util.RetentionGridEntry) bool {
 	return a.CreateTXG < b.(retentionGridAdaptor).CreateTXG
 }
 
-func (p *GridPrunePolicy) Prune(fs zfs.DatasetPath, versions []zfs.FilesystemVersion) (keep, remove []zfs.FilesystemVersion, err error) {
+func (p *GridPrunePolicy) Prune(_ *zfs.DatasetPath, versions []zfs.FilesystemVersion) (keep, remove []zfs.FilesystemVersion, err error) {
 
 	// Build adaptors for retention grid
 	adaptors := make([]util.RetentionGridEntry, len(versions))