Lena Dunham and Amy Schumer are two very powerful women in the industry, and they're not going to let their voices go unheard.

Glamour magazine recently included Schumer in their special plus-size issue without her permission, and she took to Instagram on Wednesday to call the publication out for labeling her.

"I think there's nothing wrong with being plus size," she captioned a photo of the magazine's cover. "Beautiful healthy women. Plus size is considered size 16 in America. I go between a size 6 and 8. @glamourmag put me in their plus size only issue without asking or letting me know and it doesn't feel right to me. Young girls seeing my body type thinking that is plus size? What are your thoughts? Mine are not cool glamour not glamourous."

Now that she's spoken out about this issue, Dunham has come to her defense because she agrees and doesn't think that there should be any categories in fashion whatsoever.

"I think fashion should be for women and it should be for all women," the 29-year-old "Girls" star said Wednesday night. "We did an interview recently on Lenny with Beth Ditto who just launched a line that is technically plus-sized but what she really cares about is just putting women in clothes they can feel good about because so often we've assumed women who aren't size zeros just want to put themselves in a tent."

She then went on to explain what Schumer was trying to do by calling the magazine out. "I think Amy's entire thing is trying to sort of like break down barriers and be bold about her opinions," Dunham added. "And what I think she was trying to do was stand up for women and say we're not supposed to be categorized in this role, we're supposed to just be allowed to exist."

After the "Train Wreck" comedian spoke out, Glamour, who had presented Schumer with their 2015 Woman of the Year Award, explained how it used her name for this issue because she's an inspiration.

"First off, we love Amy, and our readers do too-which is why we featured her on the cover of Glamour last year," a spokesperson for the publication said. "The cover line on this special edition-which was aimed at women size 12 and up-simple says 'Women Who Inspire Us,' since we believe her passionate and vocal message of body positivity IS inspiring, as is the message of the many other women, of all sizes, featured. The edition did not describe her as plus-size. We are sorry if we offended her in any way."