diff --git a/tex/chapters/kde.tex b/tex/chapters/kde.tex
index 0ebf8e9..f81edb4 100644
--- a/tex/chapters/kde.tex
+++ b/tex/chapters/kde.tex
@@ -80,7 +80,7 @@ However, for many applications it is recommend to use the simple binning rule
 \label{eq:simpleBinning}
     r_j(x,\delta) &=
     \begin{cases}
-        w_j & \text{if } x \in ((j-\frac{1}{2})\delta,  (j-\frac{1}{2})\delta ] \\
+        w_j & \text{if } x \in ((j-\frac{1}{2})\delta,  (j+\frac{1}{2})\delta ] \\
         0 & \text{else}
     \end{cases}
 \end{align}