diff --git a/PVE/Storage/DRBDPlugin.pm b/PVE/Storage/DRBDPlugin.pm
index b209ac8..7335757 100644
--- a/PVE/Storage/DRBDPlugin.pm
+++ b/PVE/Storage/DRBDPlugin.pm
@@ -23,7 +23,7 @@ sub type {
 
 sub plugindata {
     return {
-	content => [ {images => 1}, { images => 1 }],
+	content => [ {images => 1, rootdir => 1}, { images => 1 }],
     };
 }