diff --git a/libisoburn/trunk/xorriso/xorriso.1 b/libisoburn/trunk/xorriso/xorriso.1
index 794b1e1c..771c1f1f 100644
--- a/libisoburn/trunk/xorriso/xorriso.1
+++ b/libisoburn/trunk/xorriso/xorriso.1
@@ -542,8 +542,9 @@ Mode "none" is the default. It prevents any words from being understood
 as files to add, if they are not parameters to appropriate commands.
 .TP
 \fB\-path_list\fR disk_path
-Like -add but read the parameter words from file disk_path.
-One pathspec resp. disk_path pattern per line. 
+Like -add but read the parameter words from file disk_path
+or standard input if disk_path is "-". 
+The list must contain exactly one pathspec resp. disk_path pattern per line. 
 .TP
 \fB\-cpr\fR disk_path [***] iso_rr_path
 Insert the given files or directory trees from filesystem