diff --git a/docs/_src/tutorials/tutorials/13.md b/docs/_src/tutorials/tutorials/13.md
index a1e09e618..2ec8da4b1 100644
--- a/docs/_src/tutorials/tutorials/13.md
+++ b/docs/_src/tutorials/tutorials/13.md
@@ -14,6 +14,14 @@ id: "tutorial13md"
 This is a bare bones tutorial showing what is possible with the QuestionGenerator Nodes and Pipelines which automatically
 generate questions which the question generation model thinks can be answered by a given document.
 
+### Prepare environment
+
+#### Colab: Enable the GPU runtime
+Make sure you enable the GPU runtime to experience decent speed in this tutorial.  
+**Runtime -> Change Runtime type -> Hardware accelerator -> GPU**
+
+<img src="https://raw.githubusercontent.com/deepset-ai/haystack/master/docs/_src/img/colab_gpu_runtime.jpg">
+
 
 ```python
 # Install needed libraries
diff --git a/tutorials/Tutorial13_Question_generation.ipynb b/tutorials/Tutorial13_Question_generation.ipynb
index 686e61523..9ec1fea01 100644
--- a/tutorials/Tutorial13_Question_generation.ipynb
+++ b/tutorials/Tutorial13_Question_generation.ipynb
@@ -17,6 +17,24 @@
     "generate questions which the question generation model thinks can be answered by a given document."
    ]
   },
+  {
+   "cell_type": "markdown",
+   "metadata": {
+    "id": "yaaKv3_ZN-gb",
+    "pycharm": {
+     "name": "#%% md\n"
+    }
+   },
+   "source": [
+    "### Prepare environment\n",
+    "\n",
+    "#### Colab: Enable the GPU runtime\n",
+    "Make sure you enable the GPU runtime to experience decent speed in this tutorial.  \n",
+    "**Runtime -> Change Runtime type -> Hardware accelerator -> GPU**\n",
+    "\n",
+    "<img src=\"https://raw.githubusercontent.com/deepset-ai/haystack/master/docs/_src/img/colab_gpu_runtime.jpg\">"
+   ]
+  },
   {
    "cell_type": "code",
    "execution_count": null,
@@ -294,4 +312,4 @@
  },
  "nbformat": 4,
  "nbformat_minor": 0
-}
\ No newline at end of file
+}