Updated

Famed French footwear fashionista Christian Louboutin has said he needs a court order to keep competitors from walking all over his business of red-soled shoes, the New York Post reported Wednesday.

Louboutin -- already suing Yves Saint Laurent (YSL) for trademark infringement -- claimed a private eye working for him recently learned that rival Christian Dior was soon set to start selling shoes with his signature scarlet sole.

Court papers filed Tuesday claimed Roman Khaykin, of surveillance firm the InfoTactic Group, spoke with a sales clerk at a New York Dior store who revealed that the fashion house "is planning to make red-soled shoes with matching uppers for the next season."

Louboutin said red soles are his thing and he needs a court order to stop the copycats.

"A flood of red soles in high-fashion women's footwear creates the danger that Louboutin's good will, market prominence and fame will be destroyed," the court filing stated.

In April, Louboutin sued YSL, charging its red-soled shoes infringed on his trademark, and asked for an injunction barring them.

YSL countersued, saying Louboutin did not invent the idea of red-lacquered soles, citing "the red shoes worn by King Louis XIV in the 1600s."