diff --git a/apps/files_encryption/ajax/getMigrationStatus.php b/apps/files_encryption/ajax/getMigrationStatus.php
index 17469a1af0..7c9e0dcc51 100644
--- a/apps/files_encryption/ajax/getMigrationStatus.php
+++ b/apps/files_encryption/ajax/getMigrationStatus.php
@@ -13,16 +13,14 @@ use OCA\Encryption\Util;
 $loginname = isset($_POST['user']) ? $_POST['user'] : '';
 $password = isset($_POST['password']) ? $_POST['password'] : '';
 
-$migrationCompleted = true;
+$migrationStatus = Util::MIGRATION_COMPLETED;
 
 if ($loginname !== '' && $password !== '') {
 	$username = \OCP\User::checkPassword($loginname, $password);
 	if ($username) {
 		$util = new Util(new \OC_FilesystemView('/'), $username);
-		if ($util->getMigrationStatus() !== Util::MIGRATION_COMPLETED) {
-			$migrationCompleted = false;
-		}
+		$migrationStatus = $util->getMigrationStatus();
 	}
 }
 
-\OCP\JSON::success(array('data' => array('migrationCompleted' => $migrationCompleted)));
+\OCP\JSON::success(array('data' => array('migrationStatus' => $migrationStatus)));
diff --git a/apps/files_encryption/appinfo/app.php b/apps/files_encryption/appinfo/app.php
index fd9aa429b0..21de421c19 100644
--- a/apps/files_encryption/appinfo/app.php
+++ b/apps/files_encryption/appinfo/app.php
@@ -10,6 +10,7 @@ OC::$CLASSPATH['OCA\Encryption\Session'] = 'files_encryption/lib/session.php';
 OC::$CLASSPATH['OCA\Encryption\Capabilities'] = 'files_encryption/lib/capabilities.php';
 OC::$CLASSPATH['OCA\Encryption\Helper'] = 'files_encryption/lib/helper.php';
 
+\OCP\Util::addscript('files_encryption', 'encryption');
 \OCP\Util::addscript('files_encryption', 'detect-migration');
 
 if (!OC_Config::getValue('maintenance', false)) {
diff --git a/apps/files_encryption/hooks/hooks.php b/apps/files_encryption/hooks/hooks.php
index 1eb5f4c41e..50f322ddef 100644
--- a/apps/files_encryption/hooks/hooks.php
+++ b/apps/files_encryption/hooks/hooks.php
@@ -85,10 +85,9 @@ class Hooks {
 			$ready = $util->beginMigration();
 		} elseif ($migrationStatus === Util::MIGRATION_IN_PROGRESS) {
 			// refuse login as long as the initial encryption is running
-			while ($migrationStatus === Util::MIGRATION_IN_PROGRESS) {
-				sleep(60);
-				$migrationStatus = $util->getMigrationStatus();
-			}
+			sleep(5);
+			\OCP\User::logout();
+			return false;
 		}
 
 		// If migration not yet done
diff --git a/apps/files_encryption/js/detect-migration.js b/apps/files_encryption/js/detect-migration.js
index 301e77f24f..f5627edf4e 100644
--- a/apps/files_encryption/js/detect-migration.js
+++ b/apps/files_encryption/js/detect-migration.js
@@ -17,10 +17,14 @@ $(document).ready(function(){
 			data: {user: user, password: password},
 			async: false,
 			success: function(response) {
-				if (response.data.migrationCompleted === false) {
+				if (response.data.migrationStatus === OC.Encryption.MIGRATION_OPEN) {
 					var message = t('files_encryption', 'Initial encryption started... This can take some time. Please wait.');
 					$('#messageText').text(message);
 					$('#message').removeClass('hidden').addClass('update');
+				} else if (response.data.migrationStatus === OC.Encryption.MIGRATION_IN_PROGRESS) {
+					var message = t('files_encryption', 'Initial encryption running... Please try again later.');
+					$('#messageText').text(message);
+					$('#message').removeClass('hidden').addClass('update');
 				}
 			}
 		});
diff --git a/apps/files_encryption/js/encryption.js b/apps/files_encryption/js/encryption.js
new file mode 100644
index 0000000000..65ffabe55e
--- /dev/null
+++ b/apps/files_encryption/js/encryption.js
@@ -0,0 +1,12 @@
+/**
+ * Copyright (c) 2014
+ *  Bjoern Schiessle <schiessle@owncloud.com>
+ * This file is licensed under the Affero General Public License version 3 or later.
+ * See the COPYING-README file.
+ */
+
+OC.Encryption={
+	MIGRATION_OPEN:0,
+	MIGRATION_COMPLETED:1,
+	MIGRATION_IN_PROGRESS:-1,
+};