Index: /issm/trunk-jpl/jenkins/jenkins.sh
===================================================================
--- /issm/trunk-jpl/jenkins/jenkins.sh	(revision 19615)
+++ /issm/trunk-jpl/jenkins/jenkins.sh	(revision 19616)
@@ -20,5 +20,5 @@
 #Get Operating system (OS) name{{{
 OS=$(uname -s)
-if [[ -z "$ISSM_DIR_WIN" ]]; then 
+if [[ $OS == CYGWIN* ]]; then 
 	OS="win";
 fi