diff --git a/packages/core/chrome/core-chrome-browser-mocks/src/chrome_service.mock.ts b/packages/core/chrome/core-chrome-browser-mocks/src/chrome_service.mock.ts
index 225263674e595..d6a7a2e065945 100644
--- a/packages/core/chrome/core-chrome-browser-mocks/src/chrome_service.mock.ts
+++ b/packages/core/chrome/core-chrome-browser-mocks/src/chrome_service.mock.ts
@@ -50,6 +50,7 @@ const createStartContractMock = () => {
     setBadge: jest.fn(),
     getBreadcrumbs$: jest.fn(),
     setBreadcrumbs: jest.fn(),
+    getIsSideNavCollapsed$: jest.fn(),
     getBreadcrumbsAppendExtension$: jest.fn(),
     setBreadcrumbsAppendExtension: jest.fn(),
     getGlobalHelpExtensionMenuLinks$: jest.fn(),