diff --git a/imagespace_smqtk/web_client/js/init.js b/imagespace_smqtk/web_client/js/init.js
index e388325..5973f72 100644
--- a/imagespace_smqtk/web_client/js/init.js
+++ b/imagespace_smqtk/web_client/js/init.js
@@ -4,7 +4,7 @@ girder.events.once('im:appload.after', function () {
             search: function (image) {
                 return new imagespace.collections.ImageCollection(null, _.extend({
                     params: {
-                        url: _.has(image, 'imageUrl') ? image.imageUrl : image.get('imageUrl')
+                        url: encodeURIComponent(_.has(image, 'imageUrl') ? image.imageUrl : image.get('imageUrl'))
                     },
                     supportsPagination: false,
                     comparator: function (image) {