fix \SI

diff --git a/figures/cargame.tex b/figures/cargame.tex
index e9a2d07329a9acee4d4ef77299eb55d526f75999..b903a359d2a59f48d7ca9783eadc9a2c50bcd3fd 100644 (file)
--- a/figures/cargame.tex
+++ b/figures/cargame.tex
@@ -59,7 +59,7 @@
 
     \begin{tikzpicture}[x=1mm,y=1mm, node distance=0.5mm]
         \node[fill=cellred, draw=black!50, circle] (full) at (0,0) {};
-        \node[right=of full, anchor=west] {\si{250}{\hertz} vibration};
+        \node[right=of full, anchor=west] {\SI{250}{\hertz} vibration};
         \node[fill=white, draw=black!40, circle] (none) at (50,0) {};
         \node[right=of none, anchor=west] {no vibration};
     \end{tikzpicture}