diff --git a/examples/reference/widgets/Tabulator.ipynb b/examples/reference/widgets/Tabulator.ipynb
index b69e9a8ab1..a0001970a1 100644
--- a/examples/reference/widgets/Tabulator.ipynb
+++ b/examples/reference/widgets/Tabulator.ipynb
@@ -1417,7 +1417,8 @@
  ],
  "metadata": {
   "language_info": {
-   "name": "python"
+   "name": "python",
+   "pygments_lexer": "ipython3"
   }
  },
  "nbformat": 4,