diff --git a/terraform/layer2-k8s/templates/cluster-autoscaler-values.yaml b/terraform/layer2-k8s/templates/cluster-autoscaler-values.yaml
index c3e86f48..40ba2c48 100644
--- a/terraform/layer2-k8s/templates/cluster-autoscaler-values.yaml
+++ b/terraform/layer2-k8s/templates/cluster-autoscaler-values.yaml
@@ -12,6 +12,15 @@ rbac:
 autoDiscovery:
   clusterName: ${cluster_name}
 
+extraArgs:
+  expander: priority
+
+expanderPriorities: |
+  10:
+    - eks-${cluster_name}-ondemand.*
+  50:
+    - eks-${cluster_name}-spot.*
+
 serviceMonitor:
   enabled: true
   interval: 10s