diff --git a/webrtc/video_engine/internal/video_send_stream.cc b/webrtc/video_engine/internal/video_send_stream.cc
index a0a99e076f..55921c2ca7 100644
--- a/webrtc/video_engine/internal/video_send_stream.cc
+++ b/webrtc/video_engine/internal/video_send_stream.cc
@@ -166,8 +166,8 @@ VideoSendStream::VideoSendStream(newapi::Transport* transport,
   assert(network_ != NULL);
 
   network_->RegisterSendTransport(channel_, transport_adapter_);
-  network_->SetMTU(channel_, config_.rtp.max_packet_size +
-                   VideoSendStream::Config::kDefaultPacketOverheader);
+  // 28 to match packet overhead in ModuleRtpRtcpImpl.
+  network_->SetMTU(channel_, config_.rtp.max_packet_size + 28);
 
   if (config.encoder) {
     external_codec_ = ViEExternalCodec::GetInterface(video_engine);
diff --git a/webrtc/video_engine/new_include/video_send_stream.h b/webrtc/video_engine/new_include/video_send_stream.h
index 9ae78bd40c..5c0ec32738 100644
--- a/webrtc/video_engine/new_include/video_send_stream.h
+++ b/webrtc/video_engine/new_include/video_send_stream.h
@@ -84,8 +84,7 @@ class VideoSendStream {
           start_state(NULL) {}
     VideoCodec codec;
 
-    static const size_t kDefaultPacketOverheader = 20 + 20; // IPv4 + TCP
-    static const size_t kDefaultMaxPacketSize = 1500 - kDefaultPacketOverheader;
+    static const size_t kDefaultMaxPacketSize = 1500 - 40;  // TCP over IPv4.
     struct Rtp {
       Rtp() : mode(newapi::kRtcpReducedSize),
               max_packet_size(kDefaultMaxPacketSize) {}
diff --git a/webrtc/video_engine/test/send_stream_tests.cc b/webrtc/video_engine/test/send_stream_tests.cc
index 1c9f32d9ae..69923a704a 100644
--- a/webrtc/video_engine/test/send_stream_tests.cc
+++ b/webrtc/video_engine/test/send_stream_tests.cc
@@ -443,7 +443,7 @@ TEST_F(VideoSendStreamTest, MaxPacketSize) {
       EXPECT_TRUE(
           rtp_header_parser_->Parse(packet, static_cast<int>(length), &header));
 
-      EXPECT_TRUE(length <= max_length_);
+      EXPECT_LE(length, max_length_);
 
       accumulated_size_ += length;