diff --git a/data/data/install.openshift.io_installconfigs.yaml b/data/data/install.openshift.io_installconfigs.yaml
index ac834ce5166..22827317b52 100644
--- a/data/data/install.openshift.io_installconfigs.yaml
+++ b/data/data/install.openshift.io_installconfigs.yaml
@@ -672,6 +672,10 @@ spec:
               - source
               type: object
             type: array
+          installType:
+            description: InstallType provides signal to the cluster that the installation
+              will not follow the default installer workflow.
+            type: string
           kind:
             description: 'Kind is a string value representing the REST resource this
               object represents. Servers may infer this from the endpoint the client
diff --git a/docs/user/customization.md b/docs/user/customization.md
index 4090ecbcf11..7458ab12c33 100644
--- a/docs/user/customization.md
+++ b/docs/user/customization.md
@@ -62,6 +62,7 @@ The following `install-config.yaml` properties are available:
     * `noProxy` (optional string): A comma-separated list of domains and [CIDRs][cidr-notation] for which the proxy should not be used.
 * `pullSecret` (required string): The secret to use when pulling images.
 * `sshKey` (optional string): The public Secure Shell (SSH) key to provide access to instances.
+* `installType` (optional string): The name of the non standard installation type used to bootstrap the cluster.
 
 ### IP networks
 
@@ -154,6 +155,22 @@ pullSecret: '{"auths": ...}'
 sshKey: ssh-ed25519 AAAA...
 ```
 
+### Custom installation type
+
+An example install config with custom install type:
+
+```yaml
+apiVersion: v1
+baseDomain: example.com
+controlPlane:
+  name: master
+  replicas: 2
+metadata:
+  name: test-cluster
+platform: ...
+installType: assisted
+```
+
 ### Image content sources
 
 An example install config with custom image content sources:
diff --git a/pkg/explain/printer_test.go b/pkg/explain/printer_test.go
index 432d84b67a0..99cf1925147 100644
--- a/pkg/explain/printer_test.go
+++ b/pkg/explain/printer_test.go
@@ -50,6 +50,9 @@ func Test_PrintFields(t *testing.T) {
       ImageContentSources lists sources/repositories for the release-image content.
       ImageContentSource defines a list of sources/repositories that can be used to pull content.
 
+    installType <string>
+      InstallType provides signal to the cluster that the installation will not follow the default installer workflow.
+
     kind <string>
       Kind is a string value representing the REST resource this object represents. Servers may infer this from the endpoint the client submits requests to. Cannot be updated. In CamelCase. More info: https://git.k8s.io/community/contributors/devel/sig-architecture/api-conventions.md#types-kinds
 
diff --git a/pkg/types/installconfig.go b/pkg/types/installconfig.go
index 77a8c807ca7..efc504ea8b5 100644
--- a/pkg/types/installconfig.go
+++ b/pkg/types/installconfig.go
@@ -120,6 +120,11 @@ type InstallConfig struct {
 	// +optional
 	FIPS bool `json:"fips,omitempty"`
 
+	// InstallType provides signal to the cluster that the installation will not follow the default installer workflow.
+	//
+	// +optional
+	InstallType string `json:"installType,omitempty"`
+
 	// CredentialsMode is used to explicitly set the mode with which CredentialRequests are satisfied.
 	//
 	// If this field is set, then the installer will not attempt to query the cloud permissions before attempting