diff --git a/api/v1/externalservice_types.go b/api/v1/externalservice_types.go
index 9b85c1d7..121c61cb 100644
--- a/api/v1/externalservice_types.go
+++ b/api/v1/externalservice_types.go
@@ -90,12 +90,9 @@ type ExternalServiceSpec struct {
 	// +optional
 	JsonClusterAccessLogs bool `json:"envoyJsonClusterAccessLogs,omitempty"`
 
-	// TopologySpreadSkews is a struct that allows overriding the topology spread skews for the service
+	// TopologySpreadSkews allows overriding the topology spread skews for the service
 	// +optional
-	TopologySpreadSkews struct {
-		Zone     int `json:"zone,omitempty"`
-		Hostname int `json:"hostname,omitempty"`
-	} `json:"topologySpreadSkews,omitempty"`
+	TopologySpreadSkews TopologySpreadSkews `json:"topologySpreadSkews,omitempty"`
 
 	// ServiceTrafficDistribution allows configuration of the service traffic distribution mode
 	// if it's not set the field won't be set at all
@@ -114,6 +111,17 @@ type ExternalServicePort struct {
 	Port int32 `json:"port,omitempty"`
 }
 
+// TopologySpreadSkews allows per-service overrides of topology spread constraint max skew values.
+type TopologySpreadSkews struct {
+	// Zone is the max skew for the zone topology key. If unset, falls back to the global env var or default.
+	// +optional
+	Zone int `json:"zone,omitempty"`
+
+	// Hostname is the max skew for the hostname topology key. If unset, falls back to the global env var or default.
+	// +optional
+	Hostname int `json:"hostname,omitempty"`
+}
+
 // ExternalServiceStatus defines the observed state of ExternalService
 type ExternalServiceStatus struct {
 	// INSERT ADDITIONAL STATUS FIELD - define observed state of cluster
diff --git a/api/v1/zz_generated.deepcopy.go b/api/v1/zz_generated.deepcopy.go
index 80c83656..1c075700 100644
--- a/api/v1/zz_generated.deepcopy.go
+++ b/api/v1/zz_generated.deepcopy.go
@@ -170,3 +170,18 @@ func (in *ExternalServiceStatus) DeepCopy() *ExternalServiceStatus {
 	in.DeepCopyInto(out)
 	return out
 }
+
+// DeepCopyInto is an autogenerated deepcopy function, copying the receiver, writing into out. in must be non-nil.
+func (in *TopologySpreadSkews) DeepCopyInto(out *TopologySpreadSkews) {
+	*out = *in
+}
+
+// DeepCopy is an autogenerated deepcopy function, copying the receiver, creating a new TopologySpreadSkews.
+func (in *TopologySpreadSkews) DeepCopy() *TopologySpreadSkews {
+	if in == nil {
+		return nil
+	}
+	out := new(TopologySpreadSkews)
+	in.DeepCopyInto(out)
+	return out
+}
diff --git a/config/crd/bases/egress.monzo.com_externalservices.yaml b/config/crd/bases/egress.monzo.com_externalservices.yaml
index 23770824..719e591d 100644
--- a/config/crd/bases/egress.monzo.com_externalservices.yaml
+++ b/config/crd/bases/egress.monzo.com_externalservices.yaml
@@ -171,11 +171,30 @@ spec:
               serviceTopologyMode:
                 description: Provides a way to override the global default
                 type: string
+              serviceTrafficDistribution:
+                description: |-
+                  ServiceTrafficDistribution allows configuration of the service traffic distribution mode
+                  if it's not set the field won't be set at all
+                  https://kubernetes.io/docs/concepts/services-networking/service/#traffic-distribution
+                type: string
               targetCPUUtilizationPercentage:
                 description: Target average CPU utilization (represented as a percentage
                   of requested CPU) over all the pods. Defaults to 50
                 format: int32
                 type: integer
+              topologySpreadSkews:
+                description: TopologySpreadSkews allows overriding the topology spread
+                  skews for the service
+                properties:
+                  hostname:
+                    description: Hostname is the max skew for the hostname topology
+                      key. If unset, falls back to the global env var or default.
+                    type: integer
+                  zone:
+                    description: Zone is the max skew for the zone topology key. If
+                      unset, falls back to the global env var or default.
+                    type: integer
+                type: object
             type: object
           status:
             description: ExternalServiceStatus defines the observed state of ExternalService