diff --git a/src/Umbraco.Web.UI.Client/src/packages/templating/templates/workspace/template-workspace-editor.element.ts b/src/Umbraco.Web.UI.Client/src/packages/templating/templates/workspace/template-workspace-editor.element.ts
index 44c06c7245..e28271d172 100644
--- a/src/Umbraco.Web.UI.Client/src/packages/templating/templates/workspace/template-workspace-editor.element.ts
+++ b/src/Umbraco.Web.UI.Client/src/packages/templating/templates/workspace/template-workspace-editor.element.ts
@@ -137,7 +137,7 @@ export class UmbTemplateWorkspaceEditorElement extends UmbLitElement {
 
 		modalContext?.onSubmit().then((value) => {
 			if (!value?.selection) return;
-			this.#templateWorkspaceContext?.setMasterTemplate(value.selection[0] ?? '');
+			this.#templateWorkspaceContext?.setMasterTemplate(value.selection[0] ?? null);
 		});
 	}