Update figure attributes (ref is required)

katherinejensen00 · Dec 14, 2018 · 6064ca0 · 6064ca0
1 parent be687c6
commit 6064ca0
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/schema/usx.rnc b/schema/usx.rnc
@@ -775,7 +775,7 @@ Figure =
         attribute size { text },
         attribute loc { text }?,
         attribute copy { text }?,
-        attribute ref { text }?,
+        attribute ref { text },
         text? # Caption
     }