diff --git a/dom/media/MediaDecoderStateMachine.cpp b/dom/media/MediaDecoderStateMachine.cpp
index bb8ce66c37f2..3492db7e5f91 100644
--- a/dom/media/MediaDecoderStateMachine.cpp
+++ b/dom/media/MediaDecoderStateMachine.cpp
@@ -2353,12 +2353,12 @@ nsresult MediaDecoderStateMachine::RunStateMachine()
       // Play the remaining media. We want to run AdvanceFrame() at least
       // once to ensure the current playback position is advanced to the
       // end of the media, and so that we update the readyState.
-        MaybeStartPlayback();
       if (VideoQueue().GetSize() > 1 ||
           (HasAudio() && !mAudioCompleted) ||
           (mAudioCaptured && !mDecodedStream->IsFinished()))
       {
         // Start playback if necessary to play the remaining media.
+        MaybeStartPlayback();
         UpdateRenderedVideoFrames();
         NS_ASSERTION(!IsPlaying() ||
                      mLogicallySeeking ||