[OPENMEETINGS-2613] JS error is fixed
diff --git a/openmeetings-web/src/main/front/wb/src/wb.js b/openmeetings-web/src/main/front/wb/src/wb.js
index 4d89e78..f979e32 100644
--- a/openmeetings-web/src/main/front/wb/src/wb.js
+++ b/openmeetings-web/src/main/front/wb/src/wb.js
@@ -65,7 +65,7 @@
 					}
 					zoomBar.update(role, canvases.length);
 					if (ccount !== canvases.length) {
-						WbTools.reactivateBtn();
+						tools.reactivateBtn();
 						self._showCurrentSlide();
 					}
 				}