diff --git a/pkg/controller/infrastructure/actuator.go b/pkg/controller/infrastructure/actuator.go
index e2826742e..a36370e7e 100644
--- a/pkg/controller/infrastructure/actuator.go
+++ b/pkg/controller/infrastructure/actuator.go
@@ -55,8 +55,9 @@ func patchProviderStatusAndState(
 	patch := client.MergeFrom(infra.DeepCopy())
 	if status != nil {
 		infra.Status.ProviderStatus = &runtime.RawExtension{Object: status}
-		for _, natIP := range status.Networks.NatIPs {
-			infra.Status.EgressCIDRs = append(infra.Status.EgressCIDRs, fmt.Sprintf("%s/32", natIP.IP))
+		infra.Status.EgressCIDRs = make([]string, len(status.Networks.NatIPs))
+		for i, natIP := range status.Networks.NatIPs {
+			infra.Status.EgressCIDRs[i] = fmt.Sprintf("%s/32", natIP.IP)
 		}
 	}
 	if state != nil {