diff --git a/tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.png b/tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.png
index ae5dccb..ac11f40 100644
Binary files a/tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.png and b/tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.png differ
diff --git a/tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.tex b/tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.tex
index f3c5538..90ad89d 100644
--- a/tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.tex
+++ b/tikz/csv-2d-gaussian-multivarate-distributions/csv-2d-gaussian-multivarate-distributions.tex
@@ -58,8 +58,8 @@ scatter,
 only marks,
 point meta=explicit symbolic,
 scatter/classes={
-a={mark=*,red!90!black,fill opacity=0.2},%
-b={mark=*,cyan!50!black,fill opacity=0.2}},
+a={mark=x,red!90!black,fill opacity=0.2},%
+b={mark=x,cyan!50!black,fill opacity=0.2}},
 ]
 table[col sep=comma, meta=label] {data.csv};