diff --git a/api/schema/imageBuilder.yaml b/api/schema/imageBuilder.yaml
index 2032b803..be0b66f0 100644
--- a/api/schema/imageBuilder.yaml
+++ b/api/schema/imageBuilder.yaml
@@ -1653,6 +1653,13 @@ components:
           items:
             type: string
             example: "firewalld"
+        masked:
+          description: List of services to mask by default
+          type: array
+          minItems: 1
+          items:
+            type: string
+            example: "telnet"
     Timezone:
       type: object
       description: Timezone configuration
diff --git a/src/store/imageBuilderApi.ts b/src/store/imageBuilderApi.ts
index 6ebc91bb..0d261574 100644
--- a/src/store/imageBuilderApi.ts
+++ b/src/store/imageBuilderApi.ts
@@ -524,6 +524,8 @@ export type Services = {
   enabled?: string[];
   /** List of services to disable by default */
   disabled?: string[];
+  /** List of services to mask by default */
+  masked?: string[];
 };
 export type Kernel = {
   /** Name of the kernel to use */