diff --git a/cmake/doc/generate_image.sh b/cmake/doc/generate_image.sh
index da0d2103d4..cd1743a7f1 100755
--- a/cmake/doc/generate_image.sh
+++ b/cmake/doc/generate_image.sh
@@ -3,6 +3,6 @@ set -ex
 
 rm -f *.svg *.png
 for i in *.dot; do
-  plantuml -Tpng "$i";
+  #plantuml -Tpng "$i";
   plantuml -Tsvg "$i";
 done