diff --git a/app/assets/stylesheets/leaflet.zoom.css.scss b/app/assets/stylesheets/leaflet.zoom.css.scss
index 26d83f5b7..f920b2ffc 100644
--- a/app/assets/stylesheets/leaflet.zoom.css.scss
+++ b/app/assets/stylesheets/leaflet.zoom.css.scss
@@ -11,8 +11,7 @@
 
 .leaflet-control-zoomslider-in,
 .leaflet-control-zoomslider-out {
-  text-indent: 100%;
-  white-space: nowrap;
+  text-indent: 26px;
   overflow: hidden;
   outline-style: none;
 }