diff --git a/app_runner/docs/plantuml_wrapper.sh b/app_runner/docs/plantuml_wrapper.sh
index 5f70cda..f21e1b9 100755
--- a/app_runner/docs/plantuml_wrapper.sh
+++ b/app_runner/docs/plantuml_wrapper.sh
@@ -21,4 +21,4 @@ fi
 echo "$input" | $DOCKER run --rm -i \
     --user "$(id -u):$(id -g)" \
     $IMAGE \
-    -pipe -tsvg -charset utf-8
+    "$@"