diff --git a/README.md b/README.md
index b4e2a5c..67e892a 100644
--- a/README.md
+++ b/README.md
@@ -109,4 +109,4 @@ Most metals however aren't purely reflective, they fuzz the reflection a little
 
 In this chapter glass and other dielectric materials have been implemented using Snell's law which describes refraction. The first attempt yields the following rendering:
 
-<img src="https://raytracing.github.io/books/RayTracingInOneWeekend.html#dielectrics/snell'slaw" width="480"/>
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+<img src="https://raytracing.github.io/images/img-1.16-glass-always-refract.png" width="480"/>
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