diff --git a/Solutions/challenge-wc.md b/Solutions/challenge-wc.md
index beb3723..b8ae637 100644
--- a/Solutions/challenge-wc.md
+++ b/Solutions/challenge-wc.md
@@ -157,3 +157,4 @@ The shared solutions:
 | 148 | [challenge-wc](https://github.com/blissful-coder/CodingChallenges/tree/main/challenge-wc) | C++ | [Anurag Negi](https://github.com/blissful-coder)
 | 149 | [wc-3-prog-paradigms](https://github.com/atherio-danp/coding-challanges/tree/main/wc-tool) | C# | [Dan Patrascu-Baba](https://github.com/atherio-danp) 
 | 150 | [wc-tool-rust](https://github.com/ihaagrawal/wc-tool-rust) | Rust | [Iha Agrawal](https://github.com/ihaagrawal) 
+| 151 | [mwc](https://github.com/lkdjiin/mwc) | Crystal | [Xavier Nayrac](https://github.com/lkdjiin)