(CNN) Kim Kardashian West just shared a look at the newest addition to her brood.

West posted an adorable snap to her Instagram page on Monday with the caption, "Psalm Ye."

It's unclear if "Ye" is his middle name, which is his father, Kanye West's nickname.

The couple have not publicly shared the middle names of their other children, Chicago, Saint and North.

The photo comes exactly one month after the Wests welcomed their fourth child via surrogate.

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