diff --git a/cime_config/acme/machines/config_batch.xml b/cime_config/acme/machines/config_batch.xml
index 556757d2c9c..848f1cd8b7c 100644
--- a/cime_config/acme/machines/config_batch.xml
+++ b/cime_config/acme/machines/config_batch.xml
@@ -245,7 +245,7 @@
        <directive>--ntasks-per-node={{ tasks_per_node }}</directive>
     </directives>
     <queues>
-      <queue jobmin="1" jobmax="480" walltimemax="01:00:00" default="true">ec</queue>
+      <queue jobmin="1" jobmax="1024" walltimemax="06:00:00" default="true">ec</queue>
     </queues>
   </batch_system>
 
@@ -254,7 +254,7 @@
        <directive>--ntasks-per-node={{ tasks_per_node }}</directive>
     </directives>
     <queues>
-      <queue jobmin="1" jobmax="480" walltimemax="01:00:00" default="true">ec</queue>
+      <queue jobmin="1" jobmax="1024" walltimemax="06:00:00" default="true">ec</queue>
     </queues>
   </batch_system>