diff --git a/quic/core/quic_stream.cc b/quic/core/quic_stream.cc
index a440a13..bcdf0d9 100644
--- a/quic/core/quic_stream.cc
+++ b/quic/core/quic_stream.cc
@@ -562,6 +562,9 @@
 
 void QuicStream::SetPriority(const spdy::SpdyStreamPrecedence& precedence) {
   precedence_ = precedence;
+
+  MaybeSendPriorityUpdateFrame();
+
   session_->UpdateStreamPriority(id(), precedence);
 }