diff --git a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in_turb/turb_s100_10ms.p b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in_turb/turb_s100_10ms.p
index df16aba35748c37417076913bbd9b514fce34301..d16fe92e9502d1d340173ba6a5605d5ac937b596 100644
--- a/wetb/prepost/tests/data/demo_dlc/ref/pbs_in_turb/turb_s100_10ms.p
+++ b/wetb/prepost/tests/data/demo_dlc/ref/pbs_in_turb/turb_s100_10ms.p
@@ -4,7 +4,7 @@
 #PBS -o ./pbs_out/turb/turb_s100_10ms.out
 ### Standard Error
 #PBS -e ./pbs_out/turb/turb_s100_10ms.err
-#PBS -W umask=003
+#PBS -W umask=0003
 ### Maximum wallclock time format HOURS:MINUTES:SECONDS
 #PBS -l walltime=00:59:59
 #PBS -lnodes=1:ppn=1