diff --git a/api/v1beta2/mysqlcluster_types.go b/api/v1beta2/mysqlcluster_types.go
index 5a2ae03e8..d1a38ba29 100644
--- a/api/v1beta2/mysqlcluster_types.go
+++ b/api/v1beta2/mysqlcluster_types.go
@@ -81,7 +81,7 @@ type MySQLClusterSpec struct {
 	// +kubebuilder:validation:Minimum=0
 	// +kubebuilder:default=3600
 	// +optional
-	StartupWaitSeconds int32 `json:"startupDelaySeconds,omitempty"`
+	StartupWaitSeconds int32 `json:"startupWaitSeconds,omitempty"`
 
 	// LogRotationSchedule specifies the schedule to rotate MySQL logs.
 	// If not set, the default is to rotate logs every 5 minutes.
diff --git a/charts/moco/templates/generated/crds/apiextensions.k8s.io_v1_customresourcedefinition_mysqlclusters.moco.cybozu.com.yaml b/charts/moco/templates/generated/crds/apiextensions.k8s.io_v1_customresourcedefinition_mysqlclusters.moco.cybozu.com.yaml
index 61c088765..3ff85968a 100644
--- a/charts/moco/templates/generated/crds/apiextensions.k8s.io_v1_customresourcedefinition_mysqlclusters.moco.cybozu.com.yaml
+++ b/charts/moco/templates/generated/crds/apiextensions.k8s.io_v1_customresourcedefinition_mysqlclusters.moco.cybozu.com.yaml
@@ -8216,7 +8216,7 @@ spec:
               serverIDBase:
                 format: int32
                 type: integer
-              startupDelaySeconds:
+              startupWaitSeconds:
                 default: 3600
                 format: int32
                 minimum: 0
diff --git a/config/crd/bases/moco.cybozu.com_mysqlclusters.yaml b/config/crd/bases/moco.cybozu.com_mysqlclusters.yaml
index 6bf2187cc..c0faedb0f 100644
--- a/config/crd/bases/moco.cybozu.com_mysqlclusters.yaml
+++ b/config/crd/bases/moco.cybozu.com_mysqlclusters.yaml
@@ -8202,7 +8202,7 @@ spec:
               serverIDBase:
                 format: int32
                 type: integer
-              startupDelaySeconds:
+              startupWaitSeconds:
                 default: 3600
                 format: int32
                 minimum: 0
diff --git a/config/crd/tests/apiextensions.k8s.io_v1_customresourcedefinition_mysqlclusters.moco.cybozu.com.yaml b/config/crd/tests/apiextensions.k8s.io_v1_customresourcedefinition_mysqlclusters.moco.cybozu.com.yaml
index 4e894b2c9..6114369c3 100644
--- a/config/crd/tests/apiextensions.k8s.io_v1_customresourcedefinition_mysqlclusters.moco.cybozu.com.yaml
+++ b/config/crd/tests/apiextensions.k8s.io_v1_customresourcedefinition_mysqlclusters.moco.cybozu.com.yaml
@@ -8210,7 +8210,7 @@ spec:
               serverIDBase:
                 format: int32
                 type: integer
-              startupDelaySeconds:
+              startupWaitSeconds:
                 default: 3600
                 format: int32
                 minimum: 0
diff --git a/docs/crd_mysqlcluster_v1beta2.md b/docs/crd_mysqlcluster_v1beta2.md
index 4783778ff..20ca42d78 100644
--- a/docs/crd_mysqlcluster_v1beta2.md
+++ b/docs/crd_mysqlcluster_v1beta2.md
@@ -91,7 +91,7 @@ MySQLClusterSpec defines the desired state of MySQLCluster
 | collectors | Collectors is the list of collector flag names of mysqld_exporter. If this field is not empty, MOCO adds mysqld_exporter as a sidecar to collect and export mysqld metrics in Prometheus format.\n\nSee https://github.com/prometheus/mysqld_exporter/blob/master/README.md#collector-flags for flag names.\n\nExample: [\"engine_innodb_status\", \"info_schema.innodb_metrics\"] | []string | false |
 | serverIDBase | ServerIDBase, if set, will become the base number of server-id of each MySQL instance of this cluster.  For example, if this is 100, the server-ids will be 100, 101, 102, and so on. If the field is not given or zero, MOCO automatically sets a random positive integer. | int32 | false |
 | maxDelaySeconds | MaxDelaySeconds, if set, configures the readiness probe of mysqld container. For a replica mysqld instance, if it is delayed to apply transactions over this threshold, the mysqld instance will be marked as non-ready. The default is 60 seconds. | int | false |
-| startupDelaySeconds | StartupWaitSeconds is the maximum duration to wait for `mysqld` container to start working. The default is 3600 seconds. | int32 | false |
+| startupWaitSeconds | StartupWaitSeconds is the maximum duration to wait for `mysqld` container to start working. The default is 3600 seconds. | int32 | false |
 | logRotationSchedule | LogRotationSchedule specifies the schedule to rotate MySQL logs. If not set, the default is to rotate logs every 5 minutes. See https://pkg.go.dev/github.com/robfig/cron/v3#hdr-CRON_Expression_Format for the field format. | string | false |
 | backupPolicyName | The name of BackupPolicy custom resource in the same namespace. If this is set, MOCO creates a CronJob to take backup of this MySQL cluster periodically. | *string | true |
 | restore | Restore is the specification to perform Point-in-Time-Recovery from existing cluster. If this field is not null, MOCO restores the data as specified and create a new cluster with the data.  This field is not editable. | *[RestoreSpec](#restorespec) | false |