There's a closed pull request on the void-packages repository

telegram-desktop: add explicit dependency on libappindicator
https://github.com/void-linux/void-packages/pull/12722
Description: I don't know why, but telegram-desktop doesn't depend on libappindicator, despite it presence in makedepeds.
![image](https://user-images.githubusercontent.com/4840430/60293985-077f4180-9929-11e9-80c3-b0cfde07dca7.png)