diff --git a/parm/config/gfs/config.resources.S4 b/parm/config/gfs/config.resources.S4
index 1af64bf250..817494c7cd 100644
--- a/parm/config/gfs/config.resources.S4
+++ b/parm/config/gfs/config.resources.S4
@@ -32,7 +32,7 @@ case ${step} in
       *)
         ;;
     esac
-    export tasks_node=$(( max_tasks_per_node / threads_per_task ))
+    export tasks_per_node=$(( max_tasks_per_node / threads_per_task ))
     ;;
 
   "eobs")