diff --git a/docs/io/output/rpacket_tracking.ipynb b/docs/io/output/rpacket_tracking.ipynb
index ab61abe1913..168727da619 100644
--- a/docs/io/output/rpacket_tracking.ipynb
+++ b/docs/io/output/rpacket_tracking.ipynb
@@ -33,6 +33,7 @@
"
mu - Propagation Direction of the Packet (cosine of the angle the packet’s path makes with the radial direction)\n",
" energy - Energy of the Packet\n",
" shell_id - Current Shell Id where the Packet is present\n",
+ " interaction_type - Last Interaction type of the packet\n",
" \n",
"