diff --git a/src/Discord.Net.Core/Net/Rest/IRestClient.cs b/src/Discord.Net.Core/Net/Rest/IRestClient.cs
index 71010f70d..d6fda074f 100644
--- a/src/Discord.Net.Core/Net/Rest/IRestClient.cs
+++ b/src/Discord.Net.Core/Net/Rest/IRestClient.cs
@@ -33,6 +33,7 @@ namespace Discord.Net.Rest
         /// <returns></returns>
         Task<RestResponse> SendAsync(string method, string endpoint, CancellationToken cancelToken, bool headerOnly = false, string reason = null);
         Task<RestResponse> SendAsync(string method, string endpoint, string json, CancellationToken cancelToken, bool headerOnly = false, string reason = null);
+        Task<RestResponse> SendAsync(string method, string endpoint, IEnumerable<KeyValuePair<string?, string?>> formDataContent, CancellationToken cancelToken, bool headerOnly, string reason = null);
         Task<RestResponse> SendAsync(string method, string endpoint, IReadOnlyDictionary<string, object> multipartParams, CancellationToken cancelToken, bool headerOnly = false, string reason = null);
     }
 }