diff --git a/src/types/actions/block-action.ts b/src/types/actions/block-action.ts
index 511cb67d1..a88aea900 100644
--- a/src/types/actions/block-action.ts
+++ b/src/types/actions/block-action.ts
@@ -88,8 +88,8 @@ export interface UsersSelectAction extends BasicElementAction<'users_select'> {
  * An action from a multi select menu with user list
  */
 export interface MultiUsersSelectAction extends BasicElementAction<'multi_users_select'> {
-  selected_user: [string];
-  initial_user?: [string];
+  selected_users: [string];
+  initial_users?: [string];
   placeholder?: PlainTextElement;
   confirm?: Confirmation;
 }