Canvas as a Child with Screen Overlay follows parent scale

Hello, I've got a character that get is Scale.x changed from 1 to -1 in various moments of the gameplay. I would like to use the HUD as a child of the character since i can customize it better while scripting. However, the scale of the Parent, somehow gets inherited by the Canvas... In fact when the character has its scale.x to -1, the canvas isnt visible no more in the screenSpace. Can you tell me how to avoid this behaviour?