diff --git a/notebooks/piper_multilingual_training_notebook.ipynb b/notebooks/piper_multilingual_training_notebook.ipynb
index b0fe585..338d6a4 100644
--- a/notebooks/piper_multilingual_training_notebook.ipynb
+++ b/notebooks/piper_multilingual_training_notebook.ipynb
@@ -5,7 +5,7 @@
     "colab": {
       "provenance": [],
       "gpuType": "T4",
-      "authorship_tag": "ABX9TyNzgUqXPdUDnC0fjtxDZE0P",
+      "authorship_tag": "ABX9TyNiXaJjWsxcoKeHr7HeL2eD",
       "include_colab_link": true
     },
     "kernelspec": {
@@ -249,6 +249,9 @@
         "#@markdown ### Choose dataset format\n",
         "dataset_format = \"ljspeech\" #@param [\"ljspeech\", \"mycroft\"]\n",
         "#@markdown ---\n",
+        "#@markdown ### Is this a single speaker dataset? Otherwise, uncheck:\n",
+        "single-speaker = True #@param {type:\"boolean\"}\n",
+        "#@markdown ---\n",
         "#@markdown ### Select the sample rate of the dataset\n",
         "sample_rate = \"16000\" #@param [\"16000\", \"22050\"]\n",
         "#@markdown ---\n",
@@ -258,7 +261,8 @@
         "  --input-dir /content/dataset \\\n",
         "  --output-dir {output_dir} \\\n",
         "  --dataset-format {dataset_format} \\\n",
-        "  --sample-rate {sample_rate}"
+        "  --sample-rate {sample_rate}|\n",
+        "  --single-speaker {single-speaker}"
       ],
       "metadata": {
         "cellView": "form",