diff --git a/content/media/ogg/OggCodecState.h b/content/media/ogg/OggCodecState.h
index 247bf40071dd..2fbc8356db04 100644
--- a/content/media/ogg/OggCodecState.h
+++ b/content/media/ogg/OggCodecState.h
@@ -69,7 +69,6 @@ public:
   ogg_packet* PopFront() { return static_cast<ogg_packet*>(nsDeque::PopFront()); }
   ogg_packet* PeekFront() { return static_cast<ogg_packet*>(nsDeque::PeekFront()); }
   void PushFront(ogg_packet* aPacket) { nsDeque::PushFront(aPacket); }
-  void PushBack(ogg_packet* aPacket) { nsDeque::Push(aPacket); }
   void Erase() { nsDeque::Erase(); }
 };