diff --git a/charts/metal-control-plane/Chart.yaml b/charts/metal-control-plane/Chart.yaml
index 8a133b7..d0440b6 100644
--- a/charts/metal-control-plane/Chart.yaml
+++ b/charts/metal-control-plane/Chart.yaml
@@ -3,4 +3,4 @@ apiVersion: v1
 appVersion: "1.0"
 description: A Helm chart for deploying the metal control plane in K8s
 name: metal-control-plane
-version: 0.4.4
+version: 0.4.5
diff --git a/charts/metal-control-plane/templates/metal-api.yaml b/charts/metal-control-plane/templates/metal-api.yaml
index 228234e..282d849 100644
--- a/charts/metal-control-plane/templates/metal-api.yaml
+++ b/charts/metal-control-plane/templates/metal-api.yaml
@@ -327,6 +327,8 @@ data:
     {{ .Values.metal_api.filesystemlayouts | nindent 4 }}
   sizeimageconstraints.yaml: |
     {{ .Values.metal_api.sizeimageconstraints | nindent 4 }}
+  size_reservations.yaml: |
+    {{ .Values.metal_api.size_reservations | nindent 4 }}
 ---
 apiVersion: batch/v1
 kind: Job
@@ -370,6 +372,7 @@ spec:
               /metalctl network ip apply -f /masterdata/ip.yaml
               /metalctl filesystemlayout apply -f /masterdata/filesystemlayouts.yaml
               /metalctl size imageconstraint apply -f /masterdata/sizeimageconstraints.yaml
+              /metalctl size reservation apply -f /masterdata/size_reservations.yaml
         volumeMounts:
         - name: masterdata
           mountPath: /masterdata
@@ -410,6 +413,8 @@ spec:
               path: filesystemlayouts.yaml
             - key: sizeimageconstraints.yaml
               path: sizeimageconstraints.yaml
+            - key: size_reservations.yaml
+              path: size_reservations.yaml
 ---
 apiVersion: batch/v1
 kind: Job
diff --git a/charts/metal-control-plane/values.yaml b/charts/metal-control-plane/values.yaml
index 2a138ed..6f936d2 100644
--- a/charts/metal-control-plane/values.yaml
+++ b/charts/metal-control-plane/values.yaml
@@ -111,6 +111,7 @@ metal_api:
   projects: "[]"
   filesystemlayouts: "[]"
   sizeimageconstraints: "[]"
+  size_reservations: "[]"
   s3:
     enabled: false
     address: ""