diff --git a/striker-ui/lib/test_input/buildDomainTestBatch.tsx b/striker-ui/lib/test_input/buildDomainTestBatch.tsx
index f7d4a23c..dad7374a 100644
--- a/striker-ui/lib/test_input/buildDomainTestBatch.tsx
+++ b/striker-ui/lib/test_input/buildDomainTestBatch.tsx
@@ -6,10 +6,11 @@ import { InlineMonoText } from '../../components/Text';
 const buildDomainTestBatch: BuildInputTestBatchFunction = (
   inputName,
   onSuccess,
-  { onFinishBatch, ...defaults } = {},
+  { isRequired, onFinishBatch, ...defaults } = {},
   onDomainTestFailure,
 ) => ({
   defaults: { ...defaults, onSuccess },
+  isRequired,
   onFinishBatch,
   tests: [
     {
diff --git a/striker-ui/lib/test_input/buildIPAddressTestBatch.tsx b/striker-ui/lib/test_input/buildIPAddressTestBatch.tsx
index b8edddd7..418fb322 100644
--- a/striker-ui/lib/test_input/buildIPAddressTestBatch.tsx
+++ b/striker-ui/lib/test_input/buildIPAddressTestBatch.tsx
@@ -5,10 +5,11 @@ import testNotBlank from './testNotBlank';
 const buildIPAddressTestBatch: BuildInputTestBatchFunction = (
   inputName,
   onSuccess,
-  { onFinishBatch, ...defaults } = {},
+  { isRequired, onFinishBatch, ...defaults } = {},
   onIPv4TestFailure,
 ) => ({
   defaults: { ...defaults, onSuccess },
+  isRequired,
   onFinishBatch,
   tests: [
     {
diff --git a/striker-ui/lib/test_input/buildNumberTestBatch.tsx b/striker-ui/lib/test_input/buildNumberTestBatch.tsx
index 5a5d0447..846a5138 100644
--- a/striker-ui/lib/test_input/buildNumberTestBatch.tsx
+++ b/striker-ui/lib/test_input/buildNumberTestBatch.tsx
@@ -4,7 +4,7 @@ import toNumber from '../toNumber';
 const buildNumberTestBatch: BuildInputTestBatchFunction = (
   inputName,
   onSuccess,
-  { onFinishBatch, ...defaults } = {},
+  { isRequired, onFinishBatch, ...defaults } = {},
   onIntTestFailure?,
   onFloatTestFailure?,
   onRangeTestFailure?,
@@ -48,6 +48,7 @@ const buildNumberTestBatch: BuildInputTestBatchFunction = (
 
   return {
     defaults: { ...defaults, onSuccess },
+    isRequired,
     onFinishBatch,
     tests,
   };
diff --git a/striker-ui/lib/test_input/buildPeacefulStringTestBatch.tsx b/striker-ui/lib/test_input/buildPeacefulStringTestBatch.tsx
index 93c3cfbf..594f387e 100644
--- a/striker-ui/lib/test_input/buildPeacefulStringTestBatch.tsx
+++ b/striker-ui/lib/test_input/buildPeacefulStringTestBatch.tsx
@@ -6,10 +6,11 @@ import { InlineMonoText } from '../../components/Text';
 const buildPeacefulStringTestBatch: BuildInputTestBatchFunction = (
   inputName,
   onSuccess,
-  { onFinishBatch, ...defaults } = {},
+  { isRequired, onFinishBatch, ...defaults } = {},
   onTestPeacefulStringFailureAppend,
 ) => ({
   defaults: { ...defaults, onSuccess },
+  isRequired,
   onFinishBatch,
   tests: [
     {
diff --git a/striker-ui/lib/test_input/buildUUIDTestBatch.tsx b/striker-ui/lib/test_input/buildUUIDTestBatch.tsx
index f417f548..d5173fbf 100644
--- a/striker-ui/lib/test_input/buildUUIDTestBatch.tsx
+++ b/striker-ui/lib/test_input/buildUUIDTestBatch.tsx
@@ -5,10 +5,11 @@ import testNotBlank from './testNotBlank';
 const buildUUIDTestBatch: BuildInputTestBatchFunction = (
   inputName,
   onSuccess,
-  { onFinishBatch, ...defaults } = {},
+  { isRequired, onFinishBatch, ...defaults } = {},
   onUUIDTestFailure,
 ) => ({
   defaults: { ...defaults, onSuccess },
+  isRequired,
   onFinishBatch,
   tests: [
     {
diff --git a/striker-ui/types/TestInputFunction.d.ts b/striker-ui/types/TestInputFunction.d.ts
index 0cf81cb4..a8f5ce63 100644
--- a/striker-ui/types/TestInputFunction.d.ts
+++ b/striker-ui/types/TestInputFunction.d.ts
@@ -65,7 +65,8 @@ type InputTestBatch = {
 type BuildInputTestBatchFunction = (
   inputName: string,
   onSuccess: InputTestSuccessCallback,
-  options?: InputTestBatch['defaults'] & Pick<InputTestBatch, 'onFinishBatch'>,
+  options?: InputTestBatch['defaults'] &
+    Pick<InputTestBatch, 'isRequired' | 'onFinishBatch'>,
   ...onFailureAppends: InputTestFailureAppendCallback[]
 ) => InputTestBatch;