diff --git a/extract_file b/extract_file
index ac872e0..2ea0d30 100644
--- a/extract_file
+++ b/extract_file
@@ -12,7 +12,7 @@ while test $# -gt 0; do
       MYARCHIVE="${2##*/}"
       shift
     ;;
-    *-file)
+    *-file|*-files)
       MYFILES="$MYFILES ${2##*/}"
       shift
     ;;
diff --git a/extract_file.service b/extract_file.service
index c6878d5..5f62ca1 100644
--- a/extract_file.service
+++ b/extract_file.service
@@ -6,7 +6,7 @@
     <required/>
   </parameter>
   <parameter name="files">
-    <description>Files to extract</description>
+    <description>Files to extract. You may use this parameter multiple times</description>
     <required/>
   </parameter>
 </service>