diff --git a/elements/document/nuxeo-document-import.js b/elements/document/nuxeo-document-import.js
index 0f5b1a85d6..9d190d1baf 100644
--- a/elements/document/nuxeo-document-import.js
+++ b/elements/document/nuxeo-document-import.js
@@ -335,6 +335,10 @@ Polymer({
         text-overflow: ellipsis;
       }
 
+      .upload.vertical.layout.flex {
+        overflow: auto;
+      }
+
       .importing-label {
         margin-right: 8px;
       }