diff --git a/principal.tex b/principal.tex
index fd6e34e..4bdde53 100644
--- a/principal.tex
+++ b/principal.tex
@@ -271,7 +271,7 @@
         % & + \sum_{i,j}\sum_{q,r} Z_{iq}W_{jr} \log \mathcal{B}ern(Y_{ij};\alpha_{qr})
     \end{align*}
 
-    \onslide<3>{
+    \onslide<2>{
         EM impracticable since $\mathbf{Z,W|Y}$ intractable due to
         conditional dependency.}
 \end{frame}