diff --git a/scripts/run-tests.js b/scripts/run-tests.js
index 910ed90c..bb2065bb 100644
--- a/scripts/run-tests.js
+++ b/scripts/run-tests.js
@@ -32,6 +32,7 @@ function formatStatus(status) {
 const TESTS = {
   'chat-document-search': 'test-chat-document-search.js',
   'chat-documents-service-search': 'test-chat-documents-service-search.js',
+  'custom-field-longtext-ui': 'test-custom-field-longtext-ui.js',
   'document-type-restriction': 'test-document-type-restriction.js',
   'effective-document-count-cache': 'test-effective-document-count-cache.js',
   'failed-reset-all': 'test-failed-reset-all.js',
@@ -65,6 +66,7 @@ const AREAS = {
   ocr: ['ocr-fallback-ai-errors', 'ocr-startup-recovery'],
   observability: ['log-level-config', 'log-level-logger'],
   processing: [
+    'custom-field-longtext-ui',
     'document-type-restriction',
     'ignore-tags-filter',
     'effective-document-count-cache',
diff --git a/tests/test-custom-field-longtext-ui.js b/tests/test-custom-field-longtext-ui.js
new file mode 100644
index 00000000..b7a012f4
--- /dev/null
+++ b/tests/test-custom-field-longtext-ui.js
@@ -0,0 +1,23 @@
+const assert = require('assert');
+const fs = require('fs');
+const path = require('path');
+
+function main() {
+  const settingsTemplate = fs.readFileSync(
+    path.join(__dirname, '..', 'views', 'settings.ejs'),
+    'utf8'
+  );
+
+  assert(
+    settingsTemplate.includes('<option value="longtext">Long Text</option>'),
+    'Expected the custom field type selector to include Long Text'
+  );
+}
+
+try {
+  main();
+  console.log('[PASS] Long Text custom field option is available in settings');
+} catch (error) {
+  console.error('[FAIL] Long Text custom field UI test failed:', error.message);
+  process.exitCode = 1;
+}
diff --git a/views/settings.ejs b/views/settings.ejs
index 32381008..af5afd3c 100644
--- a/views/settings.ejs
+++ b/views/settings.ejs
@@ -600,6 +600,7 @@
                                     <div class="col-span-3">
                                         <select id="newFieldType" onchange="toggleCurrencySelect()" class="w-full px-3 py-2 border border-gray-300 dark:border-gray-600 rounded-lg shadow-sm focus:ring-2 focus:ring-blue-500 focus:border-blue-500 bg-white dark:bg-gray-800 text-gray-900 dark:text-gray-100">
                                             <option value="string">Text</option>
+                                            <option value="longtext">Long Text</option>
                                             <option value="float">Number</option>
                                             <option value="integer">Integer</option>
                                             <option value="monetary">Currency</option>