diff --git a/report.tex b/report.tex
index 35647c4..a4617c0 100644
--- a/report.tex
+++ b/report.tex
@@ -285,7 +285,7 @@
       \caption{Blue: second order systems; red: first order systems. Solid arrows: direct modifications; dashed arrows: relation. Bidirectional arrows: equivalence between systems.}
     \end{figure}
     \begin{itemize}
-      \item Z4 and GH are said to be equivalent. They damps the GR constraints. They evolve the physical metric, and thus not compatible with the moving puncture method.
+      \item Z4 and GH evolve the physical metric, and thus not compatible with the moving puncture method.
       \item The rests are using the conformal metric.
       \begin{itemize}
         \item Z4c and CCZ4 are modifications of Z4, introducing the conformal metric from BSSN to Z4, and damping both the momentum and Hamiltonian constraints.