diff --git a/getting-started/4-directional-lighting.md b/getting-started/4-directional-lighting.md
index 3ef06f0..3ea982e 100644
--- a/getting-started/4-directional-lighting.md
+++ b/getting-started/4-directional-lighting.md
@@ -25,7 +25,7 @@ void main() {
     
     // 0.2 will be the *minimum* light for objects facing away from the sun. You can mess with this value.
     // The sun/moon position must be normalized.
-    float NdotL = max(0.2, dot(normal, normalize(shadowLightPosition));
+    float NdotL = max(0.2, dot(normal, normalize(shadowLightPosition)));
     
     finalColor.rgb *= NdotL;
 }
@@ -41,4 +41,4 @@ Congrats! You now have cool shading on entities.
 
 However, take a look at the sky. You may see the sun is a bit... wider than usual. This is because the vertex position for the sky is nonsense.
 
-To fix this, we will need to make another copy `gbuffers_skytextured`, and remove the fog calculation. (Don't forget to remove directional lighting too; you don't want the sun shading itself!)
\ No newline at end of file
+To fix this, we will need to make another copy `gbuffers_skytextured`, and remove the fog calculation. (Don't forget to remove directional lighting too; you don't want the sun shading itself!)