diff --git a/components/PatchWorkspaceLayerParams.js b/components/PatchWorkspaceLayerParams.js
index 91a179a..5baaac3 100644
--- a/components/PatchWorkspaceLayerParams.js
+++ b/components/PatchWorkspaceLayerParams.js
@@ -1,5 +1,5 @@
 import React from 'react'
-import {Form} from 'semantic-ui-react'
+import {Form, Checkbox} from 'semantic-ui-react'
 import PublicationAccessRightsParams from "./PublicationAccessRightsParams";
 import FormDropdown from "./FormDropdown";
 
@@ -12,6 +12,13 @@ class PatchWorkspaceLayerParams extends React.PureComponent {
             <label>Data file</label>
             <input name="file" type="file" multiple/>
           </Form.Field>
+          <Form.Field inline>
+            <label>Append (for timeseries layers)</label>
+            <Checkbox
+                value="true"
+                name="append"
+            />
+          </Form.Field>
           <Form.Input
               inline
               name="external_table_uri"