diff --git a/es_ES.ISO8859-1/share/sgml/catalog b/es_ES.ISO8859-1/share/sgml/catalog
index ce118e5ec4..421ae49e48 100644
--- a/es_ES.ISO8859-1/share/sgml/catalog
+++ b/es_ES.ISO8859-1/share/sgml/catalog
@@ -24,3 +24,6 @@ PUBLIC "-//FreeBSD//DOCUMENT DocBook Stylesheet//ES"
 
 PUBLIC "-//FreeBSD//ENTITIES DocBook Newsgroup Entities//ES"
 	"newsgroups.ent"
+
+PUBLIC "-//FreeBSD//ENTITIES DocBook Trademark Entities//ES"
+	"trademarks.ent"