diff --git a/resources/schema/repertorium.rnc b/resources/schema/repertorium.rnc
index b221a05213e09bb3dc2808fe01b1ef80d9f7f410..efcd431ff4f78e0b9788a867240299902b274042 100644
--- a/resources/schema/repertorium.rnc
+++ b/resources/schema/repertorium.rnc
@@ -2,10 +2,13 @@
 # Schema Selbstzeugnisse Repertorium
 #
 # Autor:      David Maus <maus@hab.de>
-# Time-stamp: <2017-08-10 17:01:36 maus>
+# Time-stamp: <2017-10-09 10:10:02 maus>
 #
 # ChangeLog
 #
+# 2017-10-08  David Maus  <maus@hab.de>
+#   * <foliation> optional
+#
 # 2017-08-10  David Maus  <maus@hab.de>
 #   * <textLang>/@otherLangs optional
 #   * <msIdentifier>/<institution> zulässig
@@ -149,7 +152,7 @@ e.msDesc =
                      E13?,
                      E14
                   },
-                  E15
+                  E15?
                },
                E16?
             },