diff --git a/joblaunch/1.0/cle5.2/retest b/joblaunch/1.0/cle5.2/retest
index e5f00385cd6f6e055f93b92f899e7eabb83bd40c..865929d7e2fcaa9f71dc4bf09e5a82a56326eb53 100755
--- a/joblaunch/1.0/cle5.2/retest
+++ b/joblaunch/1.0/cle5.2/retest
@@ -71,8 +71,8 @@ UPTIME=/usr/bin/uptime
 module load xalt/0.7.1
 
 #-- Wrapped aprun and Real aprun:
-W_APRUN=`which aprun`
-R_APRUN=/usr/bin/aprun
+export W_APRUN=\$(which aprun)
+export R_APRUN=/usr/bin/aprun
 
 #-- Test with XALT's aprun wrapper