diff --git a/backend/hasher/hasher.go b/backend/hasher/hasher.go
index f43c03896..c50f2404a 100644
--- a/backend/hasher/hasher.go
+++ b/backend/hasher/hasher.go
@@ -439,7 +439,7 @@ func (f *Fs) DirMove(ctx context.Context, src fs.Fs, srcRemote, dstRemote string
 
 // Shutdown the backend, closing any background tasks and any cached connections.
 func (f *Fs) Shutdown(ctx context.Context) (err error) {
-	if f.db != nil {
+	if f.db != nil && !f.db.IsStopped() {
 		err = f.db.Stop(false)
 	}
 	if do := f.Fs.Features().Shutdown; do != nil {
diff --git a/lib/kv/bolt.go b/lib/kv/bolt.go
index 2a411c3dd..7ae5756ad 100644
--- a/lib/kv/bolt.go
+++ b/lib/kv/bolt.go
@@ -293,6 +293,11 @@ func (db *DB) Stop(remove bool) error {
 	return db.Do(false, &opStop{remove: remove})
 }
 
+// IsStopped returns true if db is already stopped
+func (db *DB) IsStopped() bool {
+	return len(dbMap) == 0
+}
+
 // opStop: close database and stop operation loop
 type opStop struct {
 	remove bool
diff --git a/lib/kv/unsupported.go b/lib/kv/unsupported.go
index 4bede3fd9..9148a1806 100644
--- a/lib/kv/unsupported.go
+++ b/lib/kv/unsupported.go
@@ -36,5 +36,10 @@ func (*DB) Stop(remove bool) error {
 	return ErrUnsupported
 }
 
+// IsStopped returns true if db is already stopped
+func (db *DB) IsStopped() bool {
+	return true
+}
+
 // Exit stops all databases
 func Exit() {}