IKEA roller blind mounting bracket

mounting bracket for IKEA roller blinds. The original broke and this should at least buy me some time to get replacement curtains...

Printed with 20% infill without support structures, seems quite sturdy.

Also attached is the FreeCAD design file.

2017-03-18 update:
After about 20 months it broke (never got round to actually replacing them)! Made the square stick-out thingy 0.4mm smaller for a less tight fit and reprinting with 80% infill...