SSL Site enable failure

When attempting to enable SSL I get the following output and no SSL info is added to the vhost config:

Changing IP address of virtual website .. .. done Adding new SSL virtual website .. .. certificate file is not valid : Data does not start with line -----BEGIN CERTIFICATE-----

Updating Webmin user …
… done

Updating Webmin user …
… done

Saving server details …
… done

Applying web server configuration …
… done

Re-loading Webmin …
… done

The manage ssl cert section is pointing to and reading the correct cert, key & ca file.

Please advise on how to correct this.

Ubuntu 14.04