Brian Brown, president of the National Organization for Marriage (NOM), on Monday said that he was “disappointed” with Indiana lawmakers who pushed back a proposed gay marriage ban.

The amendment, which was expected to go to voters in November, was delayed by at least two years after the House and Senate altered the measure's language, striking out language that also banned civil unions for gay couples.

(Related: Indiana proposed gay marriage ban pushed back.)

“The National Organization for Marriage is pleased that the Indiana legislature passed for a second time proposed constitutional amendment language that would protect marriage as the union of one man and one woman,” Brown said in a blog post. “Their action, which enjoys strong popular support throughout the state, proves that Indiana still believes marriage is solely between a man and a woman.”

“At the same time we are very disappointed that both the House and Senate amended the resolution as passed by the legislature in 2011 and removed the second sentence. This was a clear betrayal of the people of Indiana, 80% of who believe this issue should be on the ballot this year.”

Brown concluded: “Nonetheless NOM will continue to work with local and national allies [to] secure the people's right to vote on marriage as soon as possible.”