diff --git a/static/js/collection.js b/static/js/collection.js
index 26a39560..8eb74f9b 100644
--- a/static/js/collection.js
+++ b/static/js/collection.js
@@ -89,7 +89,7 @@ pandora.ui.collection = function() {
                 var sortKey = sort[0].key,
                     infoKey = sortKey == 'title' ? 'extension' : sortKey,
                     key = Ox.getObjectById(pandora.site.documentKeys, infoKey),
-                    info = pandora.formatDocumentKey(key, data),
+                    info = pandora.formatDocumentKey(key, data, size),
                     size = size || 128;
                 return {
                     height: Math.round(data.ratio > 1 ? size / data.ratio : size),
diff --git a/static/js/utils.js b/static/js/utils.js
index c423327f..522c5294 100644
--- a/static/js/utils.js
+++ b/static/js/utils.js
@@ -1080,7 +1080,7 @@ pandora.exitFullscreen = function() {
     }
 };
 
-pandora.formatDocumentKey = function(key, data) {
+pandora.formatDocumentKey = function(key, data, size) {
     var value;
     if (key.format) {
         value  = (