diff --git a/cmd/convertor/builder/overlaybd_builder.go b/cmd/convertor/builder/overlaybd_builder.go
index ad70a546..217a2aab 100644
--- a/cmd/convertor/builder/overlaybd_builder.go
+++ b/cmd/convertor/builder/overlaybd_builder.go
@@ -59,9 +59,12 @@ func NewOverlayBDBuilderEngine(base *builderEngineBase) builderEngine {
 		Lowers:     []snapshot.OverlayBDBSConfigLower{},
 		ResultFile: "",
 	}
-	config.Lowers = append(config.Lowers, snapshot.OverlayBDBSConfigLower{
-		File: overlaybdBaseLayer,
-	})
+	if !base.mkfs {
+		config.Lowers = append(config.Lowers, snapshot.OverlayBDBSConfigLower{
+			File: overlaybdBaseLayer,
+		})
+		logrus.Infof("using default baselayer")
+	}
 
 	overlaybdLayers := make([]overlaybdConvertResult, len(base.manifest.Layers))
 
@@ -295,6 +298,7 @@ func (e *overlaybdBuilderEngine) create(ctx context.Context, dir string, mkfs bo
 	opts := []string{"-s", "64"}
 	if mkfs {
 		opts = append(opts, "--mkfs")
+		logrus.Infof("mkfs for baselayer")
 	}
 	return utils.Create(ctx, dir, opts...)
 }
diff --git a/cmd/convertor/builder/turboOCI_builder.go b/cmd/convertor/builder/turboOCI_builder.go
index 883681ad..8a6dbc29 100644
--- a/cmd/convertor/builder/turboOCI_builder.go
+++ b/cmd/convertor/builder/turboOCI_builder.go
@@ -32,6 +32,7 @@ import (
 	"github.com/opencontainers/go-digest"
 	specs "github.com/opencontainers/image-spec/specs-go/v1"
 	"github.com/pkg/errors"
+	"github.com/sirupsen/logrus"
 )
 
 const (
@@ -60,9 +61,12 @@ func NewTurboOCIBuilderEngine(base *builderEngineBase) builderEngine {
 		Lowers:     []snapshot.OverlayBDBSConfigLower{},
 		ResultFile: "",
 	}
-	config.Lowers = append(config.Lowers, snapshot.OverlayBDBSConfigLower{
-		File: overlaybdBaseLayer,
-	})
+	if !base.mkfs {
+		config.Lowers = append(config.Lowers, snapshot.OverlayBDBSConfigLower{
+			File: overlaybdBaseLayer,
+		})
+		logrus.Infof("using default baselayer")
+	}
 	return &turboOCIBuilderEngine{
 		builderEngineBase: base,
 		overlaybdConfig:   config,