diff --git a/docs/markdown/Users.md b/docs/markdown/Users.md
index c06f376af..7aef32219 100644
--- a/docs/markdown/Users.md
+++ b/docs/markdown/Users.md
@@ -161,6 +161,7 @@ format files
  - [Tilix](https://github.com/gnunn1/tilix), a tiling terminal emulator for Linux using GTK+ 3
  - [Tizonia](https://github.com/tizonia/tizonia-openmax-il), a command-line cloud music player for Linux with support for Spotify, Google Play Music, YouTube, SoundCloud, TuneIn, Plex servers and Chromecast devices
  - [Trilobite XUnit Test](https://github.com/trilobite-stdlib/trilo-xtest-c), a framework for testing C code
+ - [Trilobite XCore](https://github.com/trilobite-stdlib/trilo-xcore-c), a core essential library for C code
  - [UFJF-MLTK](https://github.com/mateus558/UFJF-Machine-Learning-Toolkit), A C++ cross-platform framework for machine learning algorithms development and testing
  - [Vala Language Server](https://github.com/benwaffle/vala-language-server), code intelligence engine for the Vala and Genie programming languages
  - [Valum](https://github.com/valum-framework/valum), a micro web framework written in Vala