diff --git a/weed/command/filer_export.go b/weed/command/filer_export.go
index 85259408e..c1a5dce7f 100644
--- a/weed/command/filer_export.go
+++ b/weed/command/filer_export.go
@@ -32,7 +32,7 @@ var cmdFilerExport = &Command{
 
 var (
 	// filerExportOutputFile  = cmdFilerExport.Flag.String("output", "", "the output file. If empty, only list out the directory tree")
-	filerExportSourceStore = cmdFilerExport.Flag.String("sourceStore", "", "the source store name in filer.toml")
+	filerExportSourceStore = cmdFilerExport.Flag.String("sourceStore", "", "the source store name in filer.toml, default to currently enabled store")
 	filerExportTargetStore = cmdFilerExport.Flag.String("targetStore", "", "the target store name in filer.toml, or \"notification\" to export all files to message queue")
 	dir                    = cmdFilerExport.Flag.String("dir", "/", "only process files under this directory")
 	dirListLimit           = cmdFilerExport.Flag.Int("dirListLimit", 100000, "limit directory list size")
@@ -52,7 +52,7 @@ func runFilerExport(cmd *Command, args []string) bool {
 	var sourceStore, targetStore filer2.FilerStore
 
 	for _, store := range filer2.Stores {
-		if store.GetName() == *filerExportSourceStore {
+		if store.GetName() == *filerExportSourceStore || *filerExportSourceStore == "" && config.GetBool(store.GetName()+".enabled") {
 			viperSub := config.Sub(store.GetName())
 			if err := store.Initialize(viperSub); err != nil {
 				glog.Fatalf("Failed to initialize source store for %s: %+v",