diff --git a/expandCertbot.sh b/expandCertbot.sh
new file mode 100644
index 0000000000000000000000000000000000000000..98d9d8d571a0c68e5ff5895cc4a25815c6ec579d
--- /dev/null
+++ b/expandCertbot.sh
@@ -0,0 +1,13 @@
+#!/bin/bash
+if [ -z "$2" ]
+then
+	echo "usage $0 additional-dommains certificate"
+	echo "additional-domains : comma separated list of domains"
+	echo "expand the existing certificate with the given domains"
+	exit 1
+fi
+domains="`openssl x509  -in $2 -inform pem -noout -text | grep DNS | sed -e 's/  *//g' -e 's/DNS://g'`,$1"
+
+echo "Requesting certificate for domains: '$domains'"
+certbot certonly --expand --apache --must-staple --hsts --domains=$domains
+