diff --git a/Dockerfile b/Dockerfile
index 8d4ef20..3801e7d 100644
--- a/Dockerfile
+++ b/Dockerfile
@@ -4,6 +4,7 @@ ENV container docker
 
 ENV LIBVIRTD_DEFAULT_POOL_PATH ""
 ENV LIBVIRTD_DEFAULT_NETWORK ""
+ENV LIBVIRTD_TCP_PORT "16509"
 
 RUN yum install -y \
   libvirt-daemon-kvm \
diff --git a/libvirtd.sh b/libvirtd.sh
index f2c8552..2f1a197 100644
--- a/libvirtd.sh
+++ b/libvirtd.sh
@@ -58,6 +58,7 @@ sed -i 's/^log_outputs.*//g' /etc/libvirt/libvirtd.conf
 # replace commented default value to appropriate configuration
 sed -i "s/^#log_level.*/log_level = $LOG_LEVEL/g" /etc/libvirt/libvirtd.conf
 sed -i "s/^#log_outputs.*/log_outputs=\"$LOG_LEVEL:file:\/var\/log\/libvirt\/libvirtd.log\"/g" /etc/libvirt/libvirtd.conf
+sed -i "s/^#tcp_port.*/tcp_port=\"$LIBVIRTD_TCP_PORT\"/g" /etc/libvirt/libvirtd.conf
 
 # clean previously configured value into /etc/libvirt/virtlogd.conf
 sed -i 's/^log_level.*//g' /etc/libvirt/virtlogd.conf