diff --git a/src/main/twirl/helper/attached.scala.html b/src/main/twirl/helper/attached.scala.html
index 07cf2df..7ae78c9 100644
--- a/src/main/twirl/helper/attached.scala.html
+++ b/src/main/twirl/helper/attached.scala.html
@@ -10,11 +10,13 @@
   $('#@textareaId').closest('div').dropzone({
     url: '@path/upload/image/@owner/@repository',
     maxFilesize: 10,
+    acceptedFiles: 'image/*',
+    dictInvalidFileType: 'Unfortunately, we don\'t support that file type. Try again with a PNG, GIF, or JPG.',
     previewTemplate: "<div class=\"dz-preview\">\n  <div class=\"dz-progress\"><span class=\"dz-upload\" data-dz-uploadprogress>Uploading your images...</span></div>\n  <div class=\"dz-error-message\"><span data-dz-errormessage></span></div>\n</div>",
     success: function(file, id) {
       var images = '\n![' + file.name.split('.')[0] + '](@baseURL/@owner/@repository/_attached/' + id + ')';
       $('#@textareaId').val($('#@textareaId').val() + images);
-      file.previewElement.remove();
+      $(file.previewElement).prevAll('div.dz-preview').addBack().remove();
     }
   });
 });