diff --git a/theme/parts/icons.css b/theme/parts/icons.css
index ee957ff..59163bb 100644
--- a/theme/parts/icons.css
+++ b/theme/parts/icons.css
@@ -167,6 +167,12 @@ arrowscrollbox[orient="horizontal"] {
 .expander-down > .button-box,
 #sidebar-switcher-arrow,
 #viewButton .button-menu-dropmarker,
+.popup-notification-dropmarker .button-icon {
+	-moz-appearance: none !important;
+	list-style-image: url("../icons/pan-down-symbolic.svg") !important;
+}
+#sidebar-switcher-arrow,
+#viewButton .button-menu-dropmarker,
 .popup-notification-dropmarker .button-icon {
 	-moz-appearance: none !important;
 	list-style-image: url("../icons/pan-down-symbolic.svg") !important;