"Check" error

Hello, My solution for the task is:

def house(plan):
    height_min_max = []
    height = 0
    width_min = []
    width_max = []
    width  = 0
    for index, line in enumerate(plan.splitlines()):
        if '#' in line:
            height_min_max.append(index)
        width_min.append(line.find('#')+1)
        width_max.append(line.rfind('#')+1) 
    width = max(width_max) - min(width_min)
    if height_min_max:
        height = max(height_min_max) - min(height_min_max) + 1
    return width*height

I've got error in the final test:

    Fail:house("0000##0000\n#000##000#\n##########\n##000000##\n0########0\n")
    Your result:45

But in the editor it's - 50

Please, help

Thanks