diff --git a/Jupyter/Lab1/Lab 1 Part 3 iperf.ipynb b/Jupyter/Lab1/Lab 1 Part 3 iperf.ipynb
index b0ae738..ff0d3d3 100644
--- a/Jupyter/Lab1/Lab 1 Part 3 iperf.ipynb	
+++ b/Jupyter/Lab1/Lab 1 Part 3 iperf.ipynb	
@@ -335,7 +335,7 @@
     "* TCP     \n",
     "`iperf3 -c <server address> [Opt: -i <interval>] [Opt: -t <time>] [Opt: -f <format>] [Opt: -w <window size>]`     \n",
     "* UDP     \n",
-    "`iperf3 -c <server address> [Opt: -i <interval>] [Opt: -t <time>] [Opt: -f <format>] [Opt: -b <bandwidth>]`"
+    "`iperf3 -u -c <server address> [Opt: -i <interval>] [Opt: -t <time>] [Opt: -f <format>] [Opt: -b <bandwidth>]`"
    ]
   },
   {