diff --git a/k8s/seaweedfs/templates/cronjob.yaml b/k8s/seaweedfs/templates/cronjob.yaml
index 5442c44a9..cc8992a6a 100644
--- a/k8s/seaweedfs/templates/cronjob.yaml
+++ b/k8s/seaweedfs/templates/cronjob.yaml
@@ -35,7 +35,7 @@ spec:
                 - -c
                 - |
                   set -ex
-                  echo -e "lock\nvolume.balance -force{{ if .Values.volume.dataCenter }} -dataCenter {{ .Values.volume.dataCenter }}{{ end }}\nvolume.fix.replication\nunlock\n" | \
+                  echo -e "lock\nvolume.balance -force{{ if .Values.volume.dataCenter }} -dataCenter {{ .Values.volume.dataCenter }}{{ end }}{{ if .Values.cronjob.collection }} -collection {{ .Values.cronjob.collection }}{{ end }}\nvolume.fix.replication\nunlock\n" | \
                   /usr/bin/weed shell \
                   {{- if .Values.cronjob.master }}
                   -master {{ .Values.cronjob.master }} \
diff --git a/k8s/seaweedfs/values.yaml b/k8s/seaweedfs/values.yaml
index 28887605f..bf814ad14 100644
--- a/k8s/seaweedfs/values.yaml
+++ b/k8s/seaweedfs/values.yaml
@@ -351,6 +351,9 @@ cronjob:
   enabled: false
   schedule: "*/7 * * * *"
   resources: null
+  # balance all volumes among volume servers
+  # ALL|EACH_COLLECTION|<collection_name>
+  collection: ""
   master: ""
   filer: ""
   tolerations: ""