diff --git a/src/epub/content.opf b/src/epub/content.opf
index 984e3d7..8f461b7 100644
--- a/src/epub/content.opf
+++ b/src/epub/content.opf
@@ -36,7 +36,7 @@
 		<meta property="term" refines="#subject-2">sh85112657</meta>
 		<meta property="se:subject">Fiction</meta>
 		<meta id="collection-1" property="belongs-to-collection">Chronicles of Carlingford</meta>
-		<meta property="collection-type" refines="#collection-1">set</meta>
+		<meta property="collection-type" refines="#collection-1">series</meta>
 		<meta property="group-position" refines="#collection-1">2</meta>
 		<dc:description id="description">A young dissenting minister experiences challenges to his pastorate while going through personal crises.</dc:description>
 		<meta id="long-description" property="se:long-description" refines="#description">