diff --git a/mongo/doc-db.go b/mongo/doc-db.go
index ea6d034..73fbd07 100755
--- a/mongo/doc-db.go
+++ b/mongo/doc-db.go
@@ -34,7 +34,7 @@ func NewDocumentDB(config *Conf, opts ...mon.Option) (DocumentDBUseCase, error)
 		connectionStringTemplate,
 		config.Schema,
 		authenticationURI,
-		config.Host,
+		fmt.Sprintf("%s:%s", config.Host, config.Port),
 	)
 
 	connectUri, _ := url.Parse(connectionURI)