diff --git a/artifact/README b/artifact/README
index 81fe9bca38d8e37688c48985db50cfcf6016e751..31c9c185ceb28fcbc840c8bc9213cc5db0191a44 100644
--- a/artifact/README
+++ b/artifact/README
@@ -142,7 +142,8 @@ To run the code for the artifact four steps are required:
      
      Running this script runs the MATLAB program that processes the
      data (in a parallelized form). The output shown at the command
-     line should resemble this:
+     line should resemble this on Linux and only print the data
+     processing terminated header on MAC OS X:
      
      ************************************************************