diff --git a/kbase-extension/static/kbase/css/kbaseNarrative.css b/kbase-extension/static/kbase/css/kbaseNarrative.css
index 5b5dc93701..b68ad693ad 100644
--- a/kbase-extension/static/kbase/css/kbaseNarrative.css
+++ b/kbase-extension/static/kbase/css/kbaseNarrative.css
@@ -88,7 +88,7 @@
   cursor: pointer;
 }
 
-.kb-data-staging-container {
+.kb-data-staging__container {
   height: 604px;
   padding: 5px;
   overflow-y: auto;
diff --git a/kbase-extension/static/kbase/js/widgets/narrative_core/kbaseNarrativeStagingDataTab.js b/kbase-extension/static/kbase/js/widgets/narrative_core/kbaseNarrativeStagingDataTab.js
index aef31f59dd..73e8a300db 100644
--- a/kbase-extension/static/kbase/js/widgets/narrative_core/kbaseNarrativeStagingDataTab.js
+++ b/kbase-extension/static/kbase/js/widgets/narrative_core/kbaseNarrativeStagingDataTab.js
@@ -70,7 +70,7 @@ define([
             return this.getUserInfo()
                 .then(userInfo => {
                     const $mainElem = $('<div>')
-                        .addClass('kb-data-staging-container');
+                        .addClass('kb-data-staging__container');
                     const $dropzoneElem = $('<div>');
                     this.$elem
                         .empty()