diff --git a/chapters/part4/divergence/index.html b/chapters/part4/divergence/index.html
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+++ b/chapters/part4/divergence/index.html
@@ -31,14 +31,14 @@ <h3>Earth Mover's Distance</h3>
 
 <p>This value is very meaningful, but it doesn't have a closed form equation. Instead it is computed by solving a linear program. If the range of values that the random variables can take on is of size $n$, the linear program has a run time of $O(n^3 \cdot \log n)$ which is very slow.</p>
 
-<h3>Kullback Leiber Divergence</h3>
+<h3>Kullback-Leibler Divergence</h3>
 
 <p>Let $X$ and $Y$ be discrete random variables. Calculate the expected "excess surprise" from using Y as your Probability Mass Function instead of X when the actual Probability Mass Function is X.
 
 
 <p>
   <div class="bordered">
-    <p><b><i>Definition:</i></b> Kullback Leiber Divergence</p>
+    <p><b><i>Definition:</i></b> Kullback-Leibler Divergence</p>
   
     <p>Let $X$ and $Y$ be discrete random variables</p>