diff --git a/plugin/local/wiki/draw.css b/plugin/local/wiki/draw.css
index 834da46f..6ea6792f 100644
--- a/plugin/local/wiki/draw.css
+++ b/plugin/local/wiki/draw.css
@@ -9,4 +9,5 @@ fieldset.drawer div.output div.project div.item.select {
 }
 fieldset.drawer div.output div.content svg {
     background-color:#1b5b738c;
+    min-width:400px;
 }