"R Phatz" said his waxwork figure, which was unveiled at Madame Tussaud's in New York and London last week, better have a little muscle on the stomach.
The "Twilight" hunk, 23, who is dating his co-star, Kristien Stewart, 19, told GMTV he wasn't measured up before they created his wax like figure.
"I don't know how they got the sizes," he said.
"I hope they have given me a six-pack."
However, the wax creators did capture Robbie's rugged features, his messy hair and uber-sexy stubble.
And going by the pic above, he can make a good argument for the six-pack.
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