diff --git a/indra/newview/skins/default/xui/en/floater_world_map.xml b/indra/newview/skins/default/xui/en/floater_world_map.xml
index 83407069d2..d7e4b88a21 100644
--- a/indra/newview/skins/default/xui/en/floater_world_map.xml
+++ b/indra/newview/skins/default/xui/en/floater_world_map.xml
@@ -677,6 +677,7 @@
      name="zoom_icon"
      top_pad="7"
      width="16" ></icon>
+    <!-- NOTE: min_val for zoom slider is hardcoded for performance reasons -->
     <slider
      follows="left|bottom"
      height="16"