diff --git a/Weather/Service/Data/Database.cs b/Weather/Service/Data/Database.cs
index 4c9e0f0..93e6b8c 100644
--- a/Weather/Service/Data/Database.cs
+++ b/Weather/Service/Data/Database.cs
@@ -2,6 +2,7 @@
 using Dapper;
 using Microsoft.Extensions.Configuration;
 using Npgsql;
+using System;
 
 namespace ChrisKaczor.HomeMonitor.Weather.Service.Data
 {