Hibernian manager Shaun Maloney felt his side were denied a clear penalty during their 2-0 defeat at Ibrox.
With Rangers leading through James Tavernier's fifth-minute spot-kick after Paul McGinn brought down Ryan Kent, Hibs claimed for their own penalty when home defender Calvin Bassey grappled with Ryan Porteous at a corner.
However, referee Nick Walsh gave a free-kick to Rangers.