diff --git a/report.tex b/report.tex
index 7a9ce0d..00f2f0b 100644
--- a/report.tex
+++ b/report.tex
@@ -277,7 +277,7 @@
 
       % \draw[rel] (bssn) -- (fobssn);
       % \draw[rel] (ccz4) -- (foccz4);
-      \draw[rel] (z4) -- (gh);
+      \draw[equv] (z4) -- (gh);
 
       % \node[draw=none, above=1mm of gh, font=\scriptsize] {full first order};
       \end{tikzpicture}