diff --git a/docs/tutorial/PyMISP_tutorial.ipynb b/docs/tutorial/PyMISP_tutorial.ipynb
index 7fc32a1..dba45db 100644
--- a/docs/tutorial/PyMISP_tutorial.ipynb
+++ b/docs/tutorial/PyMISP_tutorial.ipynb
@@ -216,7 +216,7 @@
     "del event.timestamp\n",
     "\n",
     "## Add the attribute to the event\n",
-    "event.attributes.append(attribute)\n",
+    "event.add_attribute(**attribute)\n",
     "\n",
     "## Push the updated event to MISP\n",
     "event_dict = misp.update(event)\n",