diff --git a/resources/schema/repertorium.rnc b/resources/schema/repertorium.rnc
index 77c844aa0b9b7c8a299072706888954f5a52bfc5..19ea5af50f823d72622aa92b5503b3cdacc908ca 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: <2017-10-09 11:13:07 maus>
+# Time-stamp: <2017-10-12 15:19:58 maus>
 #
 # ChangeLog
 #
+# 2017-10-12  David Maus  <maus@hab.de>
+#   * <rs type="shelfmark"> erlauben
+#
 # 2017-10-08  David Maus  <maus@hab.de>
 #   * <foliation> optional
 #   * überflüssige Pattern Hyperlink entfernt
@@ -323,7 +326,7 @@ Absätze =
 
 Registerverweis =
    element rs {
-      attribute type { "place" | "person" },
+      attribute type { "place" | "person" | "shelfmark" },
       attribute ref { xsd:anyURI }?,
       text
    }