Twist prevention apparatus and method for an inflatable airbag curtain

An airbag assembly, comprising:

• an inflatable curtain having an inlet for receiving a gas guide and at least one mounting locations for mounting the inflatable curtain proximate a roof rail of a vehicle, the inflatable curtain further comprising a channel disposed adjacent the inlet and the at least one mounting location;
• and
• a stiffening member having a stiffness greater than the inflatable curtain, the stiffening member disposed within the channel and extending adjacent the at least one mounting location and along a length of the inflatable curtain to proximate the inlet, the stiffening member having an attaching portion connectable to a defined location on the gas guide, wherein the stiffening member is rigidly connected to the gas guide to prevent twisting of the inflatable curtain between the gas guide and the at least one mounting location, wherein the channel is formed integral with a material of the inflatable curtain wherein the stiffening member is a bar-shaped elongated flat member.