diff --git a/docs/tutorials/bubbles.md b/docs/tutorials/bubbles.md
index f3721e4309..04f08cbd16 100644
--- a/docs/tutorials/bubbles.md
+++ b/docs/tutorials/bubbles.md
@@ -11,7 +11,7 @@ Disney and Pixar's Inside Out 2? Click **Next** to make your own game!
 ![Play Bubble Stacking with Joy](/static/tutorials/bubbles/io2_title.jpg "How many memories can you store?")
 
 
-![ ](https://code.org/api/hour/begin_bubble_popping) 
+![ ](https://code.org/api/hour/begin_bubble_popping.png)