Kim Kardashian West wasn't invited to Kendall Jenner's birthday party.

The 'Keeping Up with the Kardashians' star, 34, was surprised to hear her half-sister hadn't included her in 19th birthday celebrations yesterday (03.11.14), according to younger sister Khloe Kardashian.

Khloe said: ''I asked Kim, 'Oh are you going tonight?' And she was like, 'I didn't know Kendall was doing anything!'

''I don't know if she was late to be invited, but I'm invited, so I feel good about that!'''

The 30-year-old beauty - who recently branded sister Kourtney Kardashian, 35, a b***h for her behaviour during her relationship with rapper French Montana - also revealed what budding supermodel Kendall had planned for her big day.

She told PEOPLE magazine: ''We're going to a family lunch, and then later tonight Kendall's having like 15 people over for a little girls' party. I don't know if it's even a party, but a girls' gathering. It will be fun!''

Khloe went on to gush about how much of a proud big sister she is of Kendall.

She added: ''It's crazy because she's still so young, but then at the same time I'm like, 'She's so old because she's done so much', especially in the past year.

''She's just a goofy girl and I love that about her. I want her to stay that way.''