diff --git a/appinfo/database.xml b/appinfo/database.xml
index 864fb299..7a193802 100644
--- a/appinfo/database.xml
+++ b/appinfo/database.xml
@@ -91,6 +91,14 @@
 				<unsigned>true</unsigned>
 				<length>4</length>
 			</field>
+			<field>
+				<name>is_guest</name>
+				<type>integer</type>
+				<default>0</default>
+				<notnull>true</notnull>
+				<unsigned>true</unsigned>
+				<length>1</length>
+			</field>
 			<field>
 				<name>status</name>
 				<type>integer</type>
diff --git a/appinfo/update.php b/appinfo/update.php
index 18ed6554..7a5274fb 100644
--- a/appinfo/update.php
+++ b/appinfo/update.php
@@ -28,4 +28,8 @@ if (version_compare($installedVersion, '0.7', '<=')) {
 		));
 		
 	}
+}
+if (version_compare($installedVersion, '0.8', '<')) {
+	$query = \OC_DB::prepare('UPDATE `*PREFIX*documents_member` SET `is_guest`=1 WHERE `uid` LIKE \'%(guest)\' ');
+	$query->execute(array());
 }
\ No newline at end of file
diff --git a/appinfo/version b/appinfo/version
index d5cc44d1..ce609caf 100755
--- a/appinfo/version
+++ b/appinfo/version
@@ -1 +1 @@
-0.7.2
\ No newline at end of file
+0.8
\ No newline at end of file