diff --git a/scripts/exgdas_enkf_ecen.sh b/scripts/exgdas_enkf_ecen.sh
index de603cba3f..30edb947a9 100755
--- a/scripts/exgdas_enkf_ecen.sh
+++ b/scripts/exgdas_enkf_ecen.sh
@@ -24,7 +24,6 @@ pwd=$(pwd)
 
 # Base variables
 CDATE=${CDATE:-"2010010100"}
-CDUMP=${CDUMP:-"gdas"}
 DONST=${DONST:-"NO"}
 export CASE=${CASE:-384}
 ntiles=${ntiles:-6}
@@ -60,7 +59,7 @@ FHMIN=${FHMIN_ECEN:-3}
 FHMAX=${FHMAX_ECEN:-9}
 FHOUT=${FHOUT_ECEN:-3}
 FHSFC=${FHSFC_ECEN:-$FHMIN}
-if [ $CDUMP = "enkfgfs" ]; then
+if [ $RUN = "enkfgfs" ]; then
    DO_CALC_INCREMENT=${DO_CALC_INCREMENT_ENKF_GFS:-"NO"}
 else
    DO_CALC_INCREMENT=${DO_CALC_INCREMENT:-"NO"}
diff --git a/scripts/exgdas_enkf_update.sh b/scripts/exgdas_enkf_update.sh
index 2bb749e226..3e931d39ff 100755
--- a/scripts/exgdas_enkf_update.sh
+++ b/scripts/exgdas_enkf_update.sh
@@ -41,7 +41,6 @@ ENKFEXEC=${ENKFEXEC:-$HOMEgfs/exec/enkf.x}
 
 # Cycling and forecast hour specific parameters
 CDATE=${CDATE:-"2001010100"}
-CDUMP=${CDUMP:-"gdas"}
 
 # Filenames.
 GPREFIX=${GPREFIX:-""}
@@ -82,7 +81,7 @@ cnvw_option=${cnvw_option:-".false."}
 netcdf_diag=${netcdf_diag:-".true."}
 modelspace_vloc=${modelspace_vloc:-".false."} # if true, 'vlocal_eig.dat' is needed
 IAUFHRS_ENKF=${IAUFHRS_ENKF:-6}
-if [ $CDUMP = "enkfgfs" ]; then
+if [ $RUN = "enkfgfs" ]; then
    DO_CALC_INCREMENT=${DO_CALC_INCREMENT_ENKF_GFS:-"NO"}
 else
    DO_CALC_INCREMENT=${DO_CALC_INCREMENT:-"NO"}