diff --git a/css/pdfdraw.css b/css/pdfdraw.css
index 0db642f..23fd9f1 100644
--- a/css/pdfdraw.css
+++ b/css/pdfdraw.css
@@ -166,6 +166,7 @@
   #ellipseMode::before,
   #lineMode::before,
   #drawModeToolbar::before,
+  #secondaryToolbarClose::before,
   .toolbarButton.download::before {
       background-size: 32px 32px !important;
       height: 32px !important;