diff --git a/apis/nucleus/src/components/listbox/utils/__tests__/frequencyMaxUtil.test.jsx b/apis/nucleus/src/components/listbox/utils/__tests__/frequencyMaxUtil.test.jsx
new file mode 100644
index 000000000..13b783c48
--- /dev/null
+++ b/apis/nucleus/src/components/listbox/utils/__tests__/frequencyMaxUtil.test.jsx
@@ -0,0 +1,9 @@
+import { getFrequencyMaxExpression } from '../frequencyMaxUtil';
+
+describe('frequencyMaxUtil - getFrequencyMaxExpression', () => {
+  test('should create correct expression and wrap and escape field if needed', async () => {
+    const result = getFrequencyMaxExpression('dimension with ] in it');
+
+    expect(result).toEqual('Max(AGGR(Count([dimension with ]] in it]), [dimension with ]] in it]))');
+  });
+});
diff --git a/apis/nucleus/src/components/listbox/utils/frequencyMaxUtil.js b/apis/nucleus/src/components/listbox/utils/frequencyMaxUtil.js
index e8d449974..d98b8b364 100644
--- a/apis/nucleus/src/components/listbox/utils/frequencyMaxUtil.js
+++ b/apis/nucleus/src/components/listbox/utils/frequencyMaxUtil.js
@@ -2,7 +2,10 @@ const escapeField = (field) => {
   if (!field) {
     return field;
   }
-  return `${field.replace(/\]/g, ']]')}`;
+  if (/^[A-Za-z][A-Za-z0-9_]*$/.test(field)) {
+    return field;
+  }
+  return `[${field.replace(/\]/g, ']]')}]`;
 };
 
 export const needToFetchFrequencyMax = (layout) => layout?.frequencyMax === 'fetch';