diff --git a/src/main/java/nlib/col/service/CollectionVO.java b/src/main/java/nlib/col/service/CollectionVO.java
index 0d416a2d..930038ab 100644
--- a/src/main/java/nlib/col/service/CollectionVO.java
+++ b/src/main/java/nlib/col/service/CollectionVO.java
@@ -199,6 +199,9 @@ public class CollectionVO extends PagingVO {
 	public String getRprsThumbUrl() {
 		return rprsThumbUrl;
 	}
+	public String getRprsThumbUrlWithDefault() {
+		return StringUtil.isEmpty(rprsThumbUrl) ? NlibProperty.getString("thumbnail.image.url.middle") : rprsThumbUrl;
+	}
 	public void setRprsThumbUrl(String rprsThumbUrl) {
 		this.rprsThumbUrl = StringUtil.isEmpty(rprsThumbUrl) ? rprsThumbUrl : NlibProperty.getString("thumbnail.image.url.prefix", "") + rprsThumbUrl;
 	}