diff --git a/eas/do_sims.sh b/eas/do_sims.sh
index a33df9d50892b87110d872687442167ce4c4596b..50ae8d5c2861294d8c710686e5ab8787ac773219 100755
--- a/eas/do_sims.sh
+++ b/eas/do_sims.sh
@@ -420,9 +420,9 @@ a=$(echo $prj)
 
 cp $basearti/sims/rain.pl $wdir/
 if $cta; then 
-    rain="./rain.pl -z"
+    rain="${wdir}/rain.pl -z"
 else
-    rain="./rain.pl "
+    rain="${wdir}/rain.pl "
 fi
 
 rain="$rain -i" # disable PLOT mode (not use PLOTSH and COMOUT)