diff --git a/migrator.go b/migrator.go
index 7c4b258..f67af1b 100644
--- a/migrator.go
+++ b/migrator.go
@@ -42,7 +42,7 @@ func (d *Db) MigrateDb(filesystem ReadDirFileFS, directory string) error {
 	log.Printf("Current version is %d, max migration version is %d", currentVersion, latestVersion)
 
 	// Create a backup if we're not on the latest version
-	if currentVersion != latestVersion && d.source != ":memory:" {
+	if currentVersion != 0 && currentVersion != latestVersion && d.source != ":memory:" {
 		target := d.source + ".backup." + strconv.Itoa(currentVersion)
 		log.Printf("Creating backup of database to %s", target)
 		data, err := d.Db.Serialize("main")