diff --git a/main/webapp/modules/core/images/minimize-map.png b/main/webapp/modules/core/images/minimize-map.png
index 9a5308d57..bb2f68c61 100644
Binary files a/main/webapp/modules/core/images/minimize-map.png and b/main/webapp/modules/core/images/minimize-map.png differ
diff --git a/main/webapp/modules/core/styles/project/facets.less b/main/webapp/modules/core/styles/project/facets.less
index 20702cbe5..2ec12ac34 100644
--- a/main/webapp/modules/core/styles/project/facets.less
+++ b/main/webapp/modules/core/styles/project/facets.less
@@ -90,13 +90,21 @@ a.facet-title-minimize {
   text-decoration: none;
   background-image: url(../../images/minimize-map.png);
   background-repeat: no-repeat;
-  background-position: -12px 0px;
+  background-position: -24px 0px;
+  }
+
+a.facet-title-minimize:hover {
+  background-position: -36px 0px;
   }
 
 li.facet-state-minimize a.facet-title-minimize {
   background-position: 0px 0px;
   }
 
+li.facet-state-minimize a.facet-title-minimize:hover {
+  background-position: -12px 0px;
+  }
+
 .facet-expression {
   padding: 3px 5px;
   font-family: monospace;