diff --git a/js/UpdatingPage.js b/js/UpdatingPage.js
index ffe227c..18a9870 100644
--- a/js/UpdatingPage.js
+++ b/js/UpdatingPage.js
@@ -87,6 +87,7 @@
 				}
 				break;
 			case UpdateAPI.STATUS.INSTALLED: 
+				_installing = false;
 				_updateAPI.stopAutoRefresh();
 				clearTimeout(_updatedRedirectDelay);
 				_updatedRedirectDelay = setTimeout(function () {
@@ -102,6 +103,9 @@
 					}
 				},UPDATED_REDIRECT_DELAY);
 				break;
+			case UpdateAPI.STATUS.INSTALL_FAILED:
+				_installing = false;
+				break;
 		}
 	}
 	function updatePage(data) {