diff --git a/api/rtp_headers.h b/api/rtp_headers.h
index a640eb7d38..743fd6d1b6 100644
--- a/api/rtp_headers.h
+++ b/api/rtp_headers.h
@@ -148,7 +148,7 @@ struct RTPHeaderExtension {
 
 enum { kRtpCsrcSize = 15 };  // RFC 3550 page 13
 
-struct RTPHeader {
+struct RTC_EXPORT RTPHeader {
   RTPHeader();
   RTPHeader(const RTPHeader& other);
   RTPHeader& operator=(const RTPHeader& other);