diff --git a/persistent/storage.go b/persistent/storage.go
index 1491d2b7..b76b58a8 100644
--- a/persistent/storage.go
+++ b/persistent/storage.go
@@ -1,8 +1,6 @@
 package persistent
 
 import (
-	"errors"
-
 	"github.com/TykTechnologies/storage/persistent/internal/driver/mongo"
 
 	"github.com/TykTechnologies/storage/persistent/internal/driver/mgo"
@@ -26,9 +24,8 @@ func NewPersistentStorage(opts *ClientOpts) (types.PersistentStorage, error) {
 	switch opts.Type {
 	case OfficialMongo:
 		return mongo.NewMongoDriver(&clientOpts)
-	case Mgo:
-		return mgo.NewMgoDriver(&clientOpts)
 	default:
-		return nil, errors.New("invalid driver")
+		//case MGO, or any unvalid
+		return mgo.NewMgoDriver(&clientOpts)
 	}
 }
diff --git a/persistent/storage_test.go b/persistent/storage_test.go
index c4edd385..e6d94b24 100644
--- a/persistent/storage_test.go
+++ b/persistent/storage_test.go
@@ -17,11 +17,7 @@ func TestNewPersistentStorage(t *testing.T) {
 				Type:             tc,
 			})
 
-			if tc == "unvalid" {
-				assert.Error(t, err)
-			} else {
-				assert.Nil(t, err)
-			}
+			assert.Nil(t, err)
 		})
 	}
 }