diff --git a/src/SeqCli/Cli/Commands/LogCommand.cs b/src/SeqCli/Cli/Commands/LogCommand.cs
index a4e091b2..c3d34fb2 100644
--- a/src/SeqCli/Cli/Commands/LogCommand.cs
+++ b/src/SeqCli/Cli/Commands/LogCommand.cs
@@ -102,7 +102,13 @@ protected override async Task<int> Run()
             }
 
             var connection = _connectionFactory.Connect(_connection);
-            var result = await connection.Client.HttpClient.PostAsync(ApiConstants.IngestionEndpoint, content);
+
+            var request = new HttpRequestMessage(HttpMethod.Post, ApiConstants.IngestionEndpoint) {Content = content};
+
+            if (_connection.IsApiKeySpecified)
+                request.Headers.Add("X-Seq-ApiKey", _connection.ApiKey);
+            
+            var result = await connection.Client.HttpClient.SendAsync(request);
 
             if (result.IsSuccessStatusCode)
                 return 0;