ABC's David Muir has been losing the ratings war with NBC's Lester Holt and at least of few ABC insiders think they know why?

It's his makeup.

Huh?!

The NY Daily News says that insiders at ABC are partly blaming the ratings decline for “World News Tonight With David Muir” on the anchor’s makeup.

 He “looks like an Oompa Loopa” on air says one ABCer. “

They say that Muir insisted on doing his own makeup for years before he got the big job at ‘World News,’ and old habits die hard,” said our source. “David likes to do [his foundation] himself and needs to be told that you can be too orange. His color is off.”

Muir has gone through two makeup artists at the network since he got the top job, but still insists on doing his own final touches after the professional is finished. “He’s been told that he cannot touch his face anymore, but he can’t help himself,” says our source. “He’s been told that he has to let the makeup people do their job. He isn’t allowed to do his own anymore,” adds the source.