diff --git a/javascript/sidebar&boxes.js b/javascript/sidebar&boxes.js
index 75b45b648a934b2d149e11a7f7d54d0715d03262..f68e70f34b9ac1c30efb1ed983ddf9fb64e2d8e2 100644
--- a/javascript/sidebar&boxes.js
+++ b/javascript/sidebar&boxes.js
@@ -75,7 +75,7 @@ function fillSelect(id) {
     select.add(new Option(text="- - -"));
     
     for (key in overlayMaps) {
-        if (id == "bufferSelect") {
+        if (id == "bufferSelect" || id == "extractSelect") {
             select.add(new Option(text = key, value = key));
         }
         else if (id != "bufferSelect" && isPolygon(overlayMaps[key])) {