diff --git a/README.md b/README.md
index aa985001..3a19391d 100644
--- a/README.md
+++ b/README.md
@@ -91,6 +91,7 @@ Alternatives
 Credits
 -------
 
+* [Markus Schirp (mbj)](https://github.com/mbj)
 * A [gist](https://gist.github.com/1065789) from [dkubb](https://github.com/dkubb) showing ideas.
 * Older abandoned [mutant](https://github.com/txus/mutant). For motivating me doing this one.
 * [heckle](https://github.com/seattlerb/heckle). For getting me into mutation testing.