diff --git a/Alignment/APEEstimation/test/unitTest.sh b/Alignment/APEEstimation/test/unitTest.sh
index a29c2099c3f24..790162a93f62f 100755
--- a/Alignment/APEEstimation/test/unitTest.sh
+++ b/Alignment/APEEstimation/test/unitTest.sh
@@ -1,5 +1,6 @@
 #! /bin/bash
 function die { echo $1: status $2 ; exit $2; }
+# comment added 
 
 echo " TESTING data set skimming"
 # skim the predefined data set