diff --git a/examples/jupyter-src/juliacon_2023.ipynb b/examples/jupyter-src/juliacon_2023.ipynb
index 5269cb0c..4ef90e1b 100644
--- a/examples/jupyter-src/juliacon_2023.ipynb
+++ b/examples/jupyter-src/juliacon_2023.ipynb
@@ -793,7 +793,9 @@
    "source": [
     "# check if the train function is working for a set of given (random) hyperparameters\n",
     "#     ([  ETA, BETA1,  BETA2, BATCHDUR, LASTWEIGHT, SCHEDULER, LOSS], RESOURCE, INDEX)\n",
-    "train!([0.0001,  0.9,  0.999,      4.0,        0.7,   :Random, :MSE],      8.0,     1) "
+    "train!([0.0001,  0.9,  0.999,      4.0,        0.7,   :Random, :MSE],      8.0,     1) \n",
+    "\n",
+    "# for hyper parameter optimization, uncomment the line above!"
    ]
   },
   {