diff --git a/src/RESTCountries.NET/Services/RESTCountriesAPI.cs b/src/RESTCountries.NET/Services/RESTCountriesAPI.cs
index 742aa9a..c8de2f3 100644
--- a/src/RESTCountries.NET/Services/RESTCountriesAPI.cs
+++ b/src/RESTCountries.NET/Services/RESTCountriesAPI.cs
@@ -6,6 +6,7 @@
 using System.Collections.Generic;
 using System.Net;
 using System.Threading.Tasks;
+using System.Linq;
 using static RESTCountries.Constants.APIResources;
 
 namespace RESTCountries.Services