diff --git a/report.tex b/report.tex
index 0fa5003..9bd7821 100644
--- a/report.tex
+++ b/report.tex
@@ -238,7 +238,7 @@
     $\implies$ we need to find a first order, strongly hyperbolic formulation of Einstein's equations with constraint damping and compatible with the moving puncture gauge condition.
   \end{frame}
 
-  \begin{frame}{Towards first order Z4c}
+  \begin{frame}{Towards first order Z4c}{Hyperbolicity of first order systems}
     \section{Towards first order Z4c}
     \subsection{Hyperbolicity of first order systems}
     Say we have a list of variables $u^I$, and a first order PDE system