diff --git a/README.md b/README.md
index 8c7233f8e4..80c65d9758 100644
--- a/README.md
+++ b/README.md
@@ -123,10 +123,11 @@ If you are compiling Armadillo by hand, ensure that LAPACK and BLAS are enabled.
 
 ### 4. Building mlpack from source
 
-This section discusses how to build mlpack from source.  However, mlpack is in
-the repositories of many Linux distributions, so it may be easier to use the
-package manager for your system.  For example, on Ubuntu, you can install mlpack
-with the following command:
+This document discusses how to build mlpack from source. These build directions 
+will work for any Linux-like shell environment (for example Ubuntu, macOS,
+freeBSD etc). However, mlpack is in the repositories of many Linux distributions 
+and so it may be easier to use the package manager for your system.  For example, 
+on Ubuntu, you can install mlpack with the following command:
 
     $ sudo apt-get install libmlpack-dev