diff --git a/src/Umbraco.Web.UI.Client/libs/extensions-registry/interfaces/modal-extension-element.interface.ts b/src/Umbraco.Web.UI.Client/libs/extensions-registry/interfaces/modal-extension-element.interface.ts
index 8c7b0c398a..af019a8c5d 100644
--- a/src/Umbraco.Web.UI.Client/libs/extensions-registry/interfaces/modal-extension-element.interface.ts
+++ b/src/Umbraco.Web.UI.Client/libs/extensions-registry/interfaces/modal-extension-element.interface.ts
@@ -1,7 +1,13 @@
+import type { ManifestModal } from '../models';
 import type { UmbModalHandler } from '@umbraco-cms/backoffice/modal';
 
-export interface UmbModalExtensionElement<UmbModalData extends object = object, UmbModalResult = unknown>
-	extends HTMLElement {
+export interface UmbModalExtensionElement<
+	UmbModalData extends object = object,
+	UmbModalResult = unknown,
+	ModalManifestType extends ManifestModal = ManifestModal
+> extends HTMLElement {
+	manifest?: ModalManifestType;
+
 	modalHandler?: UmbModalHandler<UmbModalData, UmbModalResult>;
 
 	data?: UmbModalData;
diff --git a/src/Umbraco.Web.UI.Client/src/core/modal/modal-element.element.ts b/src/Umbraco.Web.UI.Client/src/core/modal/modal-element.element.ts
index c1d80ac36f..5b6d8b6438 100644
--- a/src/Umbraco.Web.UI.Client/src/core/modal/modal-element.element.ts
+++ b/src/Umbraco.Web.UI.Client/src/core/modal/modal-element.element.ts
@@ -9,7 +9,7 @@ export abstract class UmbModalBaseElement<
 		ModalManifestType extends ManifestModal = ManifestModal
 	>
 	extends UmbLitElement
-	implements UmbModalExtensionElement<ModalDataType, ModalResultType>
+	implements UmbModalExtensionElement<ModalDataType, ModalResultType, ModalManifestType>
 {
 	@property({ type: Array, attribute: false })
 	public manifest?: ModalManifestType;