diff --git a/Jenkins.Net/Internal/JenkinsHttpCommand.cs b/Jenkins.Net/Internal/JenkinsHttpCommand.cs
index fa0e280..b94e1c7 100644
--- a/Jenkins.Net/Internal/JenkinsHttpCommand.cs
+++ b/Jenkins.Net/Internal/JenkinsHttpCommand.cs
@@ -99,6 +99,7 @@ protected void WriteXml(HttpWebRequest request, XNode node)
         {
             var xmlSettings = new XmlWriterSettings {
                 ConformanceLevel = ConformanceLevel.Fragment,
+                Encoding = Encoding.ASCII,
                 Indent = false,
             };