diff --git a/x-pack/plugins/task_manager/server/mocks.ts b/x-pack/plugins/task_manager/server/mocks.ts
index 71638bc883681..d7b234fcb2fcb 100644
--- a/x-pack/plugins/task_manager/server/mocks.ts
+++ b/x-pack/plugins/task_manager/server/mocks.ts
@@ -32,6 +32,7 @@ const createStartMock = () => {
     removeIfExists: jest.fn().mockResolvedValue(Promise.resolve()), // it's a promise and there are some places where it's followed by `.catch()`
     supportsEphemeralTasks: jest.fn(),
     bulkUpdateSchedules: jest.fn(),
+    bulkPartialUpdate: jest.fn(),
     bulkSchedule: jest.fn(),
     bulkDisable: jest.fn(),
     bulkEnable: jest.fn(),