diff --git a/talk/media/base/videoadapter.cc b/talk/media/base/videoadapter.cc
index d2b6ca33a..20114fbd3 100644
--- a/talk/media/base/videoadapter.cc
+++ b/talk/media/base/videoadapter.cc
@@ -248,7 +248,8 @@ bool VideoAdapter::AdaptFrame(const VideoFrame* in_frame,
   ++frames_;
 
   // Update input to actual frame dimensions.
-  VideoFormat format(in_frame->GetWidth(), in_frame->GetHeight(),
+  VideoFormat format(static_cast<int>(in_frame->GetWidth()),
+                     static_cast<int>(in_frame->GetHeight()),
                      input_format_.interval, input_format_.fourcc);
   SetInputFormat(format);