diff --git a/tests/exemple1.ipynb b/tests/exemple1.ipynb
new file mode 100644
index 0000000..54f657b
--- /dev/null
+++ b/tests/exemple1.ipynb
@@ -0,0 +1,37 @@
+{
+ "cells": [
+  {
+   "cell_type": "code",
+   "execution_count": null,
+   "id": "initial_id",
+   "metadata": {
+    "collapsed": true
+   },
+   "outputs": [],
+   "source": [
+    ""
+   ]
+  }
+ ],
+ "metadata": {
+  "kernelspec": {
+   "display_name": "Python 3",
+   "language": "python",
+   "name": "python3"
+  },
+  "language_info": {
+   "codemirror_mode": {
+    "name": "ipython",
+    "version": 2
+   },
+   "file_extension": ".py",
+   "mimetype": "text/x-python",
+   "name": "python",
+   "nbconvert_exporter": "python",
+   "pygments_lexer": "ipython2",
+   "version": "2.7.6"
+  }
+ },
+ "nbformat": 4,
+ "nbformat_minor": 5
+}
diff --git a/tests/exemple1.py b/tests/exemple1.py
index e285edb..5c37d4e 100644
--- a/tests/exemple1.py
+++ b/tests/exemple1.py
@@ -12,7 +12,7 @@ Alice_card = Card("Alice", 6060)
 Machine = Machine()
 
 
-Machine.authenticate(Alice_card, 6060, azerty)
+Machine.authenticate(Alice_card, 6060, "azerty")
 
 
 Machine.vote(Alice_card)
\ No newline at end of file