diff --git a/db_structure.xml b/db_structure.xml
index ef5de65303..4c192ba028 100644
--- a/db_structure.xml
+++ b/db_structure.xml
@@ -383,7 +383,7 @@
 				<name>user</name>
 				<type>text</type>
 				<default></default>
-				<notnull>true</notnull>
+				<notnull>false</notnull>
 				<length>64</length>
 			</field>
 
diff --git a/lib/util.php b/lib/util.php
index b7dc2207e6..dc13d31fd2 100755
--- a/lib/util.php
+++ b/lib/util.php
@@ -78,7 +78,7 @@ class OC_Util {
 	public static function getVersion() {
 		// hint: We only can count up. Reset minor/patchlevel when
 		// updating major/minor version number.
-		return array(5, 80, 05);
+		return array(5, 80, 06);
 	}
 
 	/**