diff --git a/JPVideoPlayer/JPVideoPlayer.m b/JPVideoPlayer/JPVideoPlayer.m
index ae2d4905..c18ba20d 100755
--- a/JPVideoPlayer/JPVideoPlayer.m
+++ b/JPVideoPlayer/JPVideoPlayer.m
@@ -601,7 +601,7 @@ - (JPVideoPlayerModel *)playerModelWithURL:(NSURL *)url
     // add observer for video playing progress.
     __weak typeof(model) wItem = model;
     __weak typeof(self) wself = self;
-    [model.player addPeriodicTimeObserverForInterval:CMTimeMake(1, 10) queue:dispatch_get_main_queue() usingBlock:^(CMTime time){
+    self.timeObserver = [model.player addPeriodicTimeObserverForInterval:CMTimeMake(1, 10) queue:dispatch_get_main_queue() usingBlock:^(CMTime time){
         __strong typeof(wItem) sItem = wItem;
         __strong typeof(wself) sself = wself;
         if (!sItem || !sself) return;