3 files changed, 4 insertions, 1 deletions
diff --git a/host/lib/usrp/b100/io_impl.cpp b/host/lib/usrp/b100/io_impl.cpp
index 9474268ef..da3abada8 100644
--- a/host/lib/usrp/b100/io_impl.cpp
+++ b/host/lib/usrp/b100/io_impl.cpp
@@ -264,6 +264,7 @@ tx_streamer::sptr b100_impl::get_tx_stream(const uhd::stream_args_t &args_){
     static const size_t hdr_size = 0
         + vrt::max_if_hdr_words32*sizeof(boost::uint32_t)
         + sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer
+        - sizeof(vrt::if_packet_info_t().sid) //no stream id ever used
         - sizeof(vrt::if_packet_info_t().cid) //no class id ever used
     ;
     static const size_t bpp = 2048 - hdr_size;
diff --git a/host/lib/usrp/e100/io_impl.cpp b/host/lib/usrp/e100/io_impl.cpp
index 53f783a3f..2b64e7f17 100644
--- a/host/lib/usrp/e100/io_impl.cpp
+++ b/host/lib/usrp/e100/io_impl.cpp
@@ -340,6 +340,7 @@ tx_streamer::sptr e100_impl::get_tx_stream(const uhd::stream_args_t &args_){
     static const size_t hdr_size = 0
         + vrt::max_if_hdr_words32*sizeof(boost::uint32_t)
         + sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer
+        - sizeof(vrt::if_packet_info_t().sid) //no stream id ever used
         - sizeof(vrt::if_packet_info_t().cid) //no class id ever used
     ;
     static const size_t bpp = _data_transport->get_send_frame_size() - hdr_size;
diff --git a/host/lib/usrp/usrp2/io_impl.cpp b/host/lib/usrp/usrp2/io_impl.cpp
index 6dcec6f1f..9b6c1c2f0 100644
--- a/host/lib/usrp/usrp2/io_impl.cpp
+++ b/host/lib/usrp/usrp2/io_impl.cpp
@@ -449,10 +449,11 @@ tx_streamer::sptr usrp2_impl::get_tx_stream(const uhd::stream_args_t &args_){
 
     //calculate packet size
     static const size_t hdr_size = 0
+        + vrt_send_header_offset_words32*sizeof(boost::uint32_t)
         + vrt::max_if_hdr_words32*sizeof(boost::uint32_t)
         + sizeof(vrt::if_packet_info_t().tlr) //forced to have trailer
-        + vrt_send_header_offset_words32*sizeof(boost::uint32_t)
         - sizeof(vrt::if_packet_info_t().cid) //no class id ever used
+        - sizeof(vrt::if_packet_info_t().sid) //no stream id ever used
     ;
     const size_t bpp = _mbc[_mbc.keys().front()].tx_dsp_xport->get_send_frame_size() - hdr_size;
     const size_t spp = bpp/convert::get_bytes_per_item(args.otw_format);