diff --git a/docs/notebooks/demo.ipynb b/docs/notebooks/demo.ipynb
index 68dc04cc..1671a070 100644
--- a/docs/notebooks/demo.ipynb
+++ b/docs/notebooks/demo.ipynb
@@ -167,7 +167,8 @@
    "outputs": [],
    "source": [
     "bounds = (-3.0, 3.0)\n",
-    "P.plot(limits=bounds, points=grid)"
+    "P.plot(limits=bounds, points=grid)\n",
+    "T.plot(limits=bounds, points=grid)"
    ]
   },
   {