diff --git a/PVE/AbstractConfig.pm b/PVE/AbstractConfig.pm
index 83db4be..ee00486 100644
--- a/PVE/AbstractConfig.pm
+++ b/PVE/AbstractConfig.pm
@@ -412,17 +412,15 @@ sub get_replicatable_volumes {
     die "implement me - abstract method\n";
 }
 
-# Returns whether the guests volumes are included in a vzdump job
-# Return Format:
-# referenced array with hashes as elements:
+# Returns all the guests volumes which would be included in a vzdump job
+# Return Format (array-ref with hash-refs as elements):
 # [
 #   {
-#	key,	    key in the config, e.g. mp0, scsi0,...
-#	included,   boolean
-#	reason,	    string
-#	volume,	    volid / mountpoint
-#	data	    volume object as returned from foreach_drive/foreach_mountpoint
-#	},
+#     key,        key in the config, e.g. mp0, scsi0,...
+#     included,   boolean
+#     reason,     string
+#     data        volume object as returned from foreach_drive/foreach_mountpoint
+#   },
 # ]
 sub get_backup_volumes {
     my ($class, $conf) = @_;