diff --git a/introduction/02_introduction_to_python_2.ipynb b/introduction/02_introduction_to_python_2.ipynb
index 589da2e4b1d1dcb95eb27dd5995ae58f9feeec56..54050939cd0467ada70882948862df5cc4832263 100644
--- a/introduction/02_introduction_to_python_2.ipynb
+++ b/introduction/02_introduction_to_python_2.ipynb
@@ -1692,7 +1692,11 @@
   },
   {
    "cell_type": "markdown",
-   "metadata": {},
+   "metadata": {
+    "slideshow": {
+     "slide_type": "slide"
+    }
+   },
    "source": [
     "<div class=\"alert alert-success\">\n",
     "<h1>Hands on!</h1>\n",