1 files changed, 1 insertions, 3 deletions
diff --git a/ServiceStack/HttpResponseExtensionsInternal.cs b/ServiceStack/HttpResponseExtensionsInternal.cs
index 318d62429..f78647721 100644
--- a/ServiceStack/HttpResponseExtensionsInternal.cs
+++ b/ServiceStack/HttpResponseExtensionsInternal.cs
@@ -161,10 +161,8 @@ namespace ServiceStack
             var responseText = result as string;
             if (responseText != null)
             {
-                if (response.ContentType == null || response.ContentType == "text/html")
-                    response.ContentType = defaultContentType;
-
                 var bytes = Encoding.UTF8.GetBytes(responseText);
+                response.SetContentLength(bytes.Length);
                 await response.OutputStream.WriteAsync(bytes, 0, bytes.Length).ConfigureAwait(false);
                 return;
             }