diff --git a/README.md b/README.md
index ba1285a..ac2de79 100644
--- a/README.md
+++ b/README.md
@@ -6,5 +6,5 @@ Efficient Sparse Voxel Octrees, Laine et al.
 
 A fast voxel traversal algorithm for ray tracing, Woo et al.
 
-![alt tag](https://github.com/MitchellHansen/voxel-raycaster/blob/master/assets/screenshot1.PNG)
+![alt tag](https://github.com/MitchellHansen/voxel-raycaster/blob/master/assets/screenshot1.png)
 ![alt tag](https://github.com/MitchellHansen/voxel-raycaster/blob/master/assets/screenshot.PNG)