diff --git a/kivy/uix/videoplayer.py b/kivy/uix/videoplayer.py
index aae0480b10..700c466270 100644
--- a/kivy/uix/videoplayer.py
+++ b/kivy/uix/videoplayer.py
@@ -480,6 +480,8 @@ def on_source(self, instance, value):
         if self._video is not None:
             self._video.unload()
             self._video = None
+        if value:
+            self._trigger_video_load()
 
     def _load_thumbnail(self):
         if not self.container: