diff --git a/client/src/entrypoints/contrib/table_block/table.test.js b/client/src/entrypoints/contrib/table_block/table.test.js
index 0cfcb4b200..becbf79bb0 100644
--- a/client/src/entrypoints/contrib/table_block/table.test.js
+++ b/client/src/entrypoints/contrib/table_block/table.test.js
@@ -67,6 +67,7 @@ describe('telepath: wagtail.widgets.TableInput', () => {
   let testValue;
   let handsontableConstructorMock;
   let renderMock;
+  let updateSettingsMock;
 
   // Call this to render the table block with the current settings
   const render = () => {
@@ -84,6 +85,7 @@ describe('telepath: wagtail.widgets.TableInput', () => {
   beforeEach(() => {
     handsontableConstructorMock = jest.fn();
     renderMock = jest.fn();
+    updateSettingsMock = jest.fn();
 
     class HandsontableMock {
       constructor(...args) {
@@ -93,6 +95,10 @@ describe('telepath: wagtail.widgets.TableInput', () => {
       render() {
         renderMock();
       }
+
+      updateSettings(opts) {
+        updateSettingsMock(opts);
+      }
     }
 
     window.Handsontable = HandsontableMock;