diff --git a/netwerk/protocol/http/src/nsHttpTransaction.cpp b/netwerk/protocol/http/src/nsHttpTransaction.cpp
index e081003397ac..99bf5e153a44 100644
--- a/netwerk/protocol/http/src/nsHttpTransaction.cpp
+++ b/netwerk/protocol/http/src/nsHttpTransaction.cpp
@@ -44,11 +44,9 @@
 #include "nsHttpRequestHead.h"
 #include "nsHttpResponseHead.h"
 #include "nsHttpChunkedDecoder.h"
-#include "nsNetSegmentUtils.h"
 #include "nsTransportUtils.h"
 #include "nsProxyRelease.h"
 #include "nsIOService.h"
-#include "nsNetUtil.h"
 #include "nsAutoLock.h"
 #include "pratom.h"
 
@@ -268,12 +266,7 @@ nsHttpTransaction::Init(PRUint8 caps,
         rv = multi->AppendStream(requestBody);
         if (NS_FAILED(rv)) return rv;
 
-        // wrap the multiplexed input stream with a buffered input stream, so
-        // that we write data in the largest chunks possible.  this is actually
-        // necessary to workaround some common server bugs (see bug 137155).
-        rv = NS_NewBufferedInputStream(getter_AddRefs(mRequestStream), multi,
-                                       NET_DEFAULT_SEGMENT_SIZE);
-        if (NS_FAILED(rv)) return rv;
+        mRequestStream = multi;
     }
     else
         mRequestStream = headers;