The Indianapolis Chamber of Commerce on Tuesday announced its opposition to a proposed gay marriage ban in Indiana.

Michael Huber, president of the Indianapolis Chamber of Commerce, said the constitutional amendment could hurt the state's economic climate.

“Writing what we consider to be discriminatory language into the Indiana Constitution would really fly in the face of a lot of our economic development efforts, specifically our efforts to show people Indiana is a welcoming place, because we want people to be moving here, not just from the East and West coasts but from all over the world,” Huber told Indiana Public Media.

“While most of the country is moving toward equality, do we want to be moving in this direction and planting a flag that certain people aren't welcome here in Indiana?” asked Megan Robertson, who heads Freedom Indiana, which opposes the proposed ban. “I think most Hoosiers are saying that's not what we want to be about.”

Republican lawmakers, including Governor Mike Pence, are pushing for House Joint Resolution 6 (HJR-6) to be on next year's ballot. The measure seeks to define marriage as a heterosexual union and prohibit civil unions as an alternative to marriage. It sailed through the Republican-controlled General Assembly in 2011. A needed second vote is expected to take place early next year.

A December, 2012 WISH-TV/Ball State University Hoosier Survey found only 38 percent of respondents support the amendment.

(Related: Indiana: Majority oppose proposed gay marriage ban.)