diff --git a/examples/draw-features.html b/examples/draw-features.html
index cd43dff850..ce1c480540 100644
--- a/examples/draw-features.html
+++ b/examples/draw-features.html
@@ -19,5 +19,5 @@ tags: "draw, edit, freehand, vector"
     <option value="Circle">Circle</option>
     <option value="None">None</option>
   </select>
-  <input class="form-control mr-2 mb-2 mt-2" type="button" value="Undo" id="undo"></input>
+  <input class="form-control mr-2 mb-2 mt-2" type="button" value="Undo" id="undo">
 </form>