diff --git a/BritishHorseRacingApi/ApiClient.cs b/BritishHorseRacingApi/ApiClient.cs
index 2a1994f..b7af5b7 100644
--- a/BritishHorseRacingApi/ApiClient.cs
+++ b/BritishHorseRacingApi/ApiClient.cs
@@ -18,7 +18,11 @@ namespace BritishHorseRacingApi
         private const int _waitTimeAfterFail = 5;
         private const string _userAgent = "Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/79.0.3945.130 Safari/537.36";
 
-        public ApiClient(TimeSpan? delay = null) : base(delay) {   }
+        public ApiClient(TimeSpan? delay = null, string cookie = null) : base(delay) 
+        {
+            if(cookie != null)
+                _client.DefaultHeaders.Add("Cookie", cookie);
+        }
 
         public static class Endpoints
         {