diff --git a/src/module_vmap/module/template/tools/basictools.html b/src/module_vmap/module/template/tools/basictools.html
index 14eef44b1658e6ef181f9e622ac37593723d8a42..991b7a8f1107a32f67b6693616a25d0b6c310b49 100644
--- a/src/module_vmap/module/template/tools/basictools.html
+++ b/src/module_vmap/module/template/tools/basictools.html
@@ -25,7 +25,8 @@
                         <a class="basic-tools-element pointer"
                            id="map-compare-tool-btn"
                            title="Comparaison de carte"
-                           onclick="oVmap.getToolsManager().getBasicTools().toggleTool(this)">
+                           onclick="oVmap.getToolsManager().getBasicTools().toggleTool(this)"
+                           ng-class="{'active2':$root.compare_enabled}">
                             <span class="icon-mirror" aria-hidden="true"></span>
                         </a>
                         <div app-compare-mode app-lang="ctrl.lang" app-map="ctrl.map"