diff --git a/Runtime/Model/BacktraceHttpClient.cs b/Runtime/Model/BacktraceHttpClient.cs
index 19097591..fda1d611 100644
--- a/Runtime/Model/BacktraceHttpClient.cs
+++ b/Runtime/Model/BacktraceHttpClient.cs
@@ -98,7 +98,6 @@ private UnityWebRequest Post(string submissionUrl, List<IMultipartFormSection> f
             request.timeout = RequestTimeout;
             request.IgnoreSsl(IgnoreSslValidation);
             request.SetMultipartFormData(boundaryIdBytes);
-            source.SetRequestHeader(ContentTypeHeader, string.Format("{0}{1}", multipartContentTypePrefix, Encoding.UTF8.GetString(boundaryId)));
             return request;
         }