diff --git a/Dockerfile b/Dockerfile
index 4bcb890..d4217e4 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -3,7 +3,7 @@ FROM quay.io/centos/centos:stream9
 # Help people find the actual baremetal command
 COPY scripts/openstack /usr/bin/openstack
 
-RUN dnf install -y python3 python3-pip && \
+RUN dnf install -y python3 python3-pip genisoimage && \
     pip install python-ironicclient --prefix /usr --no-cache-dir && \
     chmod +x /usr/bin/openstack && \
     dnf update -y && \