diff --git a/src/Radiance_Monitor/data_extract/ush/RadMon_DE_rgn.sh b/src/Radiance_Monitor/data_extract/ush/RadMon_DE_rgn.sh
index 2114371..e0838e6 100755
--- a/src/Radiance_Monitor/data_extract/ush/RadMon_DE_rgn.sh
+++ b/src/Radiance_Monitor/data_extract/ush/RadMon_DE_rgn.sh
@@ -213,7 +213,7 @@ jobname=${jobname:-RadMon_DE_${RADMON_SUFFIX}}
 
 if [[ -z "${pdate}" ]]; then
    echo "getting pdate from TANKVERF"
-   ldate=`${MON_USH}/rgn_find_cycle.pl --cyc 1 --dir ${TANKverf}`
+   ldate=`${MON_USH}/rgn_find_cycle.pl --dir ${TANKverf} --mon radmon`
 
    if [[ ${#ldate} -ne 10 ]]; then
       echo "ERROR:  Unable to locate any previous cycle's data files"