diff --git a/assets/js/src/form_editor/store/controls.jsx b/assets/js/src/form_editor/store/controls.jsx
index 7b0b63f513..858912d961 100644
--- a/assets/js/src/form_editor/store/controls.jsx
+++ b/assets/js/src/form_editor/store/controls.jsx
@@ -7,6 +7,7 @@ import formatCustomFieldBlockName from '../blocks/format_custom_field_block_name
 import getCustomFieldBlockSettings from '../blocks/custom_fields_blocks.jsx';
 import { registerCustomFieldBlock } from '../blocks/blocks.jsx';
 import mapFormDataBeforeSaving from './map_form_data_before_saving.jsx';
+import findBlock from './find_block.jsx';
 
 const formatApiErrorMessage = (response) => {
   let errorMessage = null;
@@ -17,21 +18,6 @@ const formatApiErrorMessage = (response) => {
   return errorMessage;
 };
 
-const findBlock = (blocks, name) => (
-  blocks.reduce((result, block) => {
-    if (result) {
-      return result;
-    }
-    if (block.name === name) {
-      return block;
-    }
-    if (Array.isArray(block.innerBlocks) && block.innerBlocks.length) {
-      return findBlock(block.innerBlocks, name);
-    }
-    return null;
-  }, null)
-);
-
 export default {
   SAVE_FORM() {
     if (select('mailpoet-form-editor').getIsFormSaving()) {
diff --git a/assets/js/src/form_editor/store/find_block.jsx b/assets/js/src/form_editor/store/find_block.jsx
new file mode 100644
index 0000000000..a855b4147e
--- /dev/null
+++ b/assets/js/src/form_editor/store/find_block.jsx
@@ -0,0 +1,16 @@
+const findBlock = (blocks, name) => (
+  blocks.reduce((result, block) => {
+    if (result) {
+      return result;
+    }
+    if (block.name === name) {
+      return block;
+    }
+    if (Array.isArray(block.innerBlocks) && block.innerBlocks.length) {
+      return findBlock(block.innerBlocks, name);
+    }
+    return null;
+  }, null)
+);
+
+export default findBlock;
diff --git a/assets/js/src/form_editor/store/form_validator.jsx b/assets/js/src/form_editor/store/form_validator.jsx
index db160737a8..5539076963 100644
--- a/assets/js/src/form_editor/store/form_validator.jsx
+++ b/assets/js/src/form_editor/store/form_validator.jsx
@@ -1,3 +1,5 @@
+import findBlock from './find_block.jsx';
+
 export default (formData, formBlocks) => {
   if (!formData || !formData.settings || !Array.isArray(formData.settings.segments)) {
     throw new Error('formData.settings.segments are expected to be an array.');
@@ -9,8 +11,8 @@ export default (formData, formBlocks) => {
   if (!formData.settings.segments || formData.settings.segments.length === 0) {
     errors.push('missing-lists');
   }
-  const emailInput = formBlocks.find((block) => (block.name === 'mailpoet-form/email-input'));
-  const submit = formBlocks.find((block) => (block.name === 'mailpoet-form/submit-button'));
+  const emailInput = findBlock(formBlocks, 'mailpoet-form/email-input');
+  const submit = findBlock(formBlocks, 'mailpoet-form/submit-button');
   if (!emailInput) {
     errors.push('missing-email-input');
   }
diff --git a/tests/javascript/form_editor/store/form_validator.spec.js b/tests/javascript/form_editor/store/form_validator.spec.js
index 3df8367162..6c78cb0e30 100644
--- a/tests/javascript/form_editor/store/form_validator.spec.js
+++ b/tests/javascript/form_editor/store/form_validator.spec.js
@@ -21,6 +21,27 @@ const submitBlock = {
   },
 };
 
+const columns = {
+  clientId: 'columns-1',
+  name: 'core/columns',
+  isValid: true,
+  attributes: {
+    verticalAlignment: 'center',
+  },
+  innerBlocks: [
+    {
+      clientId: 'column-1-1',
+      name: 'core/column',
+      isValid: true,
+      attributes: {
+        width: 66.66,
+        verticalAlignment: 'center',
+      },
+      innerBlocks: [emailBlock, submitBlock],
+    },
+  ],
+};
+
 describe('Form validator', () => {
   it('Should return no errors for valid data', () => {
     const formData = {
@@ -33,6 +54,17 @@ describe('Form validator', () => {
     expect(result).to.be.empty;
   });
 
+  it('Should validate form data with nested email and submit', () => {
+    const formData = {
+      settings: {
+        segments: [1],
+      },
+    };
+    const blocks = [columns];
+    const result = validate(formData, blocks);
+    expect(result).to.be.empty;
+  });
+
   it('Should return error for missing lists', () => {
     const formData = {
       settings: {