diff --git a/principal.tex b/principal.tex
index d9655b5..fd6e34e 100644
--- a/principal.tex
+++ b/principal.tex
@@ -277,7 +277,7 @@
 \end{frame}
 \begin{frame}{Parameter estimation}{Solution}
     \emph{Variational EM}~\cite{daudinMixtureModelRandom2008,chabert-liddellLearningCommonStructures2024}.
-    \begin{block}{Variational approximation of $\mathbf{Z,W|Y},\theta^{(t-1)}$}
+    \begin{block}{Variational approximation of $\mathbf{Z,W|Y}$}
         $\mathcal{R}_{Y^m,\tau}(Z^m, W^m) =
             \mathcal{R}^1_{Y^m,\tau}(Z^m)
             {\color{red}\times}
@@ -286,8 +286,8 @@
     \begin{align*}
         \ell (\mathbf{Y};\theta) \geq \color{red}\sum_{m=1}^{M} \bigg(
         \color{black} \mathbb{E}_{\mathcal{R}_{Y^m,\tau}(Z^m,W^m)}
-        \left[ \ell_c(Y^m,Z^m,W^m ; \theta^{(t)}) \right] + \\
-        \mathcal{H}(\mathcal{R}_{Y^m,\theta^{(t)}}
+        \left[ \ell_c(Y^m,Z^m,W^m ; \theta) \right] + \\
+        \mathcal{H}(\mathcal{R}_{Y^m,\tau}
         (Z^m, W^m))
         \color{red}\bigg) \color{black}
         \eqcolon \mathcal{J}(\mathcal{R}_{\mathbf{Y},\tau};\theta)