diff --git a/frontend/src/ketr-photos/ketr-photos.html b/frontend/src/ketr-photos/ketr-photos.html
index fbd389c..eb9fd64 100755
--- a/frontend/src/ketr-photos/ketr-photos.html
+++ b/frontend/src/ketr-photos/ketr-photos.html
@@ -395,7 +395,7 @@
               if (i == visible.length) {
                 this.thumbnails[index].visible = false;
               }
-            });
+            }.bind(this));
 
             /* Turn on visibility for any item that is now visible */
             visible.forEach(function(index) {