diff --git a/koha-tmpl/intranet-tmpl/prog/en/modules/plugins/plugins-upload.tt b/koha-tmpl/intranet-tmpl/prog/en/modules/plugins/plugins-upload.tt
index bb493d04a4..08f08d192b 100644
--- a/koha-tmpl/intranet-tmpl/prog/en/modules/plugins/plugins-upload.tt
+++ b/koha-tmpl/intranet-tmpl/prog/en/modules/plugins/plugins-upload.tt
@@ -49,7 +49,7 @@
                          <div class="hint"><strong>NOTE:</strong> Only KPZ file format is supported.</div>
                         <ol>
                             <li>
-                                <label for="uploadfile">Select the file to upload: </label><input type="file" id="uploadfile" name="uploadfile" />
+                                <label for="uploadfile">Select the file to upload: </label><input type="file" id="uploadfile" name="uploadfile" accept=".kpz" />
                             </li>
                         </ol>
                     </fieldset>