generateChangeLog fails if there's a column called "URL"

We have a column in our postgres DB called “URL” (capital letters) and generateChangeLog fails. Any idea why? We changed the column name, and now it works. It looks like liquibase thinks that “URL” is a reserved word?

URL isn’t in the list of reserved words for postgres in the liquibase code or in

What liquibase and postgres version are you using, and can you post the error? Especially with --logLevel=DEBUG enabled?