diff --git a/tools/customize_ubuntu_image b/tools/customize_ubuntu_image
index fdd2d12..cb96b17 100755
--- a/tools/customize_ubuntu_image
+++ b/tools/customize_ubuntu_image
@@ -19,6 +19,7 @@
    iperf3
    iputils-ping
    ncat
+   nmap
    psmisc  # provides killall command
    python3
    tcpdump