diff --git a/examples/certificate/refresh-certs.sh b/examples/certificate/refresh-certs.sh
index 9f590cb..efc808b 100755
--- a/examples/certificate/refresh-certs.sh
+++ b/examples/certificate/refresh-certs.sh
@@ -1,4 +1,7 @@
 #!/usr/bin/env bash
+
+VERSION="1.0.0"
+THIS=$(basename $0)
  
 # Provide an error message and usage instructions.
 usage () {