diff --git a/README.md b/README.md
index 2927cef..e092c42 100644
--- a/README.md
+++ b/README.md
@@ -22,7 +22,7 @@ I'm not going to accept any pull request. This source code is not maintained by
 
 ## How to compile
  - **Windows**: execute "CreateMarsJar.bat" file to generate an executable.
- - **GNU/Linux** and **Mac**: execute the "CreateMarsJar.sh" to generate an executable. If you can't due of permissions, do a "**chmod +x CreateMarsJar.sh**".
+ - **GNU/Linux** and **Mac**: execute the "CreateMarsJar.sh" to generate an executable. If you can't due of permissions, do a "**chmod +x CreateMarsJar.sh**" (Thanks to [@aesptux][8] to be the tester in Mac).
 
 ## License
 [MIT][2]. Chech the [LICENSE][3] file. All the credits go to the original developers.
@@ -33,4 +33,5 @@ I'm not going to accept any pull request. This source code is not maintained by
   [4]: http://faculty.otterbein.edu/PSanderson/
   [5]: http://courses.missouristate.edu/KenVollmar/
   [6]: http://courses.missouristate.edu/KenVollmar/MARS/download.htm
-  [7]: http://courses.missouristate.edu/KenVollmar/MARS/Help/MarsHelpIntro.html
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+  [7]: http://courses.missouristate.edu/KenVollmar/MARS/Help/MarsHelpIntro.html
+  [8]: http://twitter.com/aesptux
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