diff --git a/install/0000_80_machine-config-operator_01_machineconfig.crd.yaml b/install/0000_80_machine-config-operator_01_machineconfig.crd.yaml
index b51a91f613..c35930c071 100644
--- a/install/0000_80_machine-config-operator_01_machineconfig.crd.yaml
+++ b/install/0000_80_machine-config-operator_01_machineconfig.crd.yaml
@@ -74,6 +74,7 @@ spec:
                   description: Ignition section contains metadata about the configuration
                     itself. We only permit a subsection of ignition fields for MachineConfigs.
                   type: object
+                  x-kubernetes-preserve-unknown-fields: true
                   properties:
                     config:
                       type: object
@@ -147,6 +148,7 @@ spec:
                 storage:
                   description: Storage describes the desired state of the system's storage devices.
                   type: object
+                  x-kubernetes-preserve-unknown-fields: true
                   properties:
                     directories:
                       description: Directories is the list of directories to be created