diff --git a/media/libvpx/libvpx/vp8/encoder/onyx_if.c b/media/libvpx/libvpx/vp8/encoder/onyx_if.c
index 9717feb136..648a616c9e 100644
--- a/media/libvpx/libvpx/vp8/encoder/onyx_if.c
+++ b/media/libvpx/libvpx/vp8/encoder/onyx_if.c
@@ -1413,6 +1413,10 @@ void vp8_change_config(VP8_COMP *cpi, VP8_CONFIG *oxcf) {
   last_h = cpi->oxcf.Height;
   prev_number_of_layers = cpi->oxcf.number_of_layers;
 
+  if (cpi->initial_width) {
+      oxcf->multi_threaded = cpi->oxcf.multi_threaded;
+  }
+
   cpi->oxcf = *oxcf;
 
   switch (cpi->oxcf.Mode) {