diff --git a/mailpoet/lib/Subscription/CaptchaRenderer.php b/mailpoet/lib/Subscription/CaptchaRenderer.php
index 870bfd42b3..fa915b9c31 100644
--- a/mailpoet/lib/Subscription/CaptchaRenderer.php
+++ b/mailpoet/lib/Subscription/CaptchaRenderer.php
@@ -48,38 +48,12 @@ class CaptchaRenderer {
   }
 
   public function getCaptchaPageContent($sessionId) {
+
     $this->captchaSession->init($sessionId);
-    $fields = [
-      [
-        'id' => 'captcha',
-        'type' => 'text',
-        'params' => [
-          'label' => __('Type in the characters you see in the picture above:', 'mailpoet'),
-          'value' => '',
-          'obfuscate' => false,
-        ],
-      ],
-    ];
-
-    $form = array_merge(
-      $fields,
-      [
-        [
-          'id' => 'submit',
-          'type' => 'submit',
-          'params' => [
-            'label' => __('Subscribe', 'mailpoet'),
-          ],
-        ],
-      ]
-    );
-
     $captchaSessionForm = $this->captchaSession->getFormData();
-    $formId = 0;
-
     $showSuccessMessage = !empty($_GET['mailpoet_success']);
     $showErrorMessage = !empty($_GET['mailpoet_error']);
-
+    $formId = 0;
     if (isset($captchaSessionForm['form_id'])) {
       $formId = (int)$captchaSessionForm['form_id'];
     } elseif ($showSuccessMessage) {
@@ -93,6 +67,33 @@ class CaptchaRenderer {
       return false;
     }
 
+    $fields = [
+      [
+        'id' => 'captcha',
+        'type' => 'text',
+        'params' => [
+          'label' => __('Type in the characters you see in the picture above:', 'mailpoet'),
+          'value' => '',
+          'obfuscate' => false,
+        ],
+      ],
+    ];
+
+    $submitBlocks = $formModel->getBlocksByTypes(['submit']);
+    $submitLabel = count($submitBlocks) && $submitBlocks[0]['params']['label'] ? $submitBlocks[0]['params']['label'] : __('Subscribe', 'mailpoet');
+    $form = array_merge(
+      $fields,
+      [
+        [
+          'id' => 'submit',
+          'type' => 'submit',
+          'params' => [
+            'label' => $submitLabel,
+          ],
+        ],
+      ]
+    );
+
     if ($showSuccessMessage) {
       // Display a success message in a no-JS flow
       return $this->renderFormMessages($formModel, $showSuccessMessage);
diff --git a/mailpoet/tests/integration/Subscription/CaptchaRendererTest.php b/mailpoet/tests/integration/Subscription/CaptchaRendererTest.php
new file mode 100644
index 0000000000..f84dd5b734
--- /dev/null
+++ b/mailpoet/tests/integration/Subscription/CaptchaRendererTest.php
@@ -0,0 +1,80 @@
+<?php
+
+namespace MailPoet\Test\Subscription;
+
+use MailPoet\Entities\FormEntity;
+use MailPoet\Form\FormsRepository;
+use MailPoet\Subscription\CaptchaRenderer;
+use MailPoet\Subscription\CaptchaSession;
+
+class CaptchaRendererTest extends \MailPoetTest
+{
+
+  public function testCaptchaSubmitTextIsConfigurable() {
+
+    $expectedLabel = 'EXPECTED_LABEL';
+    $formRepository = $this->diContainer->get(FormsRepository::class);
+    $form = new FormEntity('captcha-render-test-form');
+    $form->setBody([
+      [
+        'type' => 'text',
+        'id' => 'email',
+      ],
+      [
+        'type' => 'submit',
+        'params' => [
+          'label' => $expectedLabel,
+        ],
+      ],
+    ]);
+    $form->setSettings([
+      'success_message' => 'tada!',
+    ]);
+    $form->setId(1);
+    $formRepository->persist($form);
+    $formRepository->flush();
+    $captchaSession = $this->diContainer->get(CaptchaSession::class);
+    $captchaSession->init();
+    $captchaSession->setFormData(['form_id' => $form->getId()]);
+
+    $testee = $this->diContainer->get(CaptchaRenderer::class);
+    $result = $testee->getCaptchaPageContent($captchaSession->getId());
+    $this->assertStringContainsString('value="' . $expectedLabel . '"', $result);
+  }
+
+  public function testCaptchaSubmitTextHasDefault() {
+
+    $formRepository = $this->diContainer->get(FormsRepository::class);
+    $form = new FormEntity('captcha-render-test-form');
+    $form->setBody([
+      [
+        'type' => 'text',
+        'id' => 'email',
+      ],
+      [
+        'type' => 'submit',
+        'params' => [
+          'label' => '',
+        ],
+      ],
+    ]);
+    $form->setSettings([
+      'success_message' => 'tada!',
+    ]);
+    $form->setId(1);
+    $formRepository->persist($form);
+    $formRepository->flush();
+    $captchaSession = $this->diContainer->get(CaptchaSession::class);
+    $captchaSession->init();
+    $captchaSession->setFormData(['form_id' => $form->getId()]);
+
+    $testee = $this->diContainer->get(CaptchaRenderer::class);
+    $result = $testee->getCaptchaPageContent($captchaSession->getId());
+    $this->assertStringContainsString('value="Subscribe"', $result);
+  }
+
+  public function _before() {
+    $this->diContainer->get(FormsRepository::class)->truncate();
+    parent::_before();
+  }
+}