diff --git a/recaptcha.module b/recaptcha.module
index e0e31e6..6c34789 100644
--- a/recaptcha.module
+++ b/recaptcha.module
@@ -72,7 +72,7 @@ function recaptcha_permission() {
 /**
  * Implements hook_captcha().
  */
-function recaptcha_captcha($op, $captcha_type = '') {
+function recaptcha_captcha($op, $captcha_type = '',  $captcha_sid = '') {
   global $language;
 
   switch ($op) {
@@ -105,6 +105,7 @@ function recaptcha_captcha($op, $captcha_type = '') {
           }
 
           $attributes = array(
+            'id' => 'g-recaptcha' . $captcha_sid,
             'class' => 'g-recaptcha',
             'data-sitekey' => $recaptcha_site_key,
             'data-theme' => variable_get('recaptcha_theme', 'light'),
@@ -125,12 +126,29 @@ function recaptcha_captcha($op, $captcha_type = '') {
             '#tag' => 'script',
             '#value' => '',
             '#attributes' => array(
-              'src' => url('https://www.google.com/recaptcha/api.js', array('query' => array('hl' => $language->language), 'absolute' => TRUE)),
+              'src' => url('https://www.google.com/recaptcha/api.js?onload=ReCaptchaCallbackForMultiple&render=explicit', array('query' => array('hl' => $language->language), 'absolute' => TRUE)),
               'async' => 'async',
               'defer' => 'defer',
             ),
           );
           drupal_add_html_head($data, 'recaptcha_api');
+
+          // To make it display multiple.
+          $current_head = drupal_add_html_head();
+          $callback_script = (isset($current_head['recaptcha_render_callback_script'])) ? $current_head['recaptcha_render_callback_script'] : NULL;
+          if (!isset($callback_script)) {
+            $callback_script = array(
+              '#type' => 'markup',
+              '#markup' => '<script type="text/javascript">
+                  var ReCaptchaCallbackForMultiple = function(){
+                  };
+              </script>',
+            );
+          }
+          $callback_script = str_replace('var ReCaptchaCallbackForMultiple = function(){',
+              'var ReCaptchaCallbackForMultiple = function(){' .
+              'grecaptcha.render(\'g-recaptcha' . ($captcha_sid) . '\', {\'sitekey\' : \'' . $recaptcha_site_key . '\'});', $callback_script);
+          drupal_add_html_head($callback_script, 'recaptcha_render_callback_script');
         }
         else {
           // Fallback to Math captcha as reCAPTCHA is not configured.
@@ -190,5 +208,12 @@ function recaptcha_captcha_validation($solution, $response, $element, $form_stat
 function template_preprocess_recaptcha_widget_noscript(&$variables) {
   $variables['sitekey']  = check_plain($variables['widget']['sitekey']);
   $variables['language'] = check_plain($variables['widget']['language']);
-  $variables['url']      = check_url(url('https://www.google.com/recaptcha/api/fallback', array('query' => array('k' => $variables['widget']['sitekey'], 'hl' => $variables['widget']['language']), 'absolute' => TRUE)));
+  $variables['url'] = check_url(
+    url('https://www.google.com/recaptcha/api/fallback', array(
+      'query' => array(
+        'k' => $variables['widget']['sitekey'],
+        'hl' => $variables['widget']['language'],
+      ),
+      'absolute' => TRUE,
+    )));
 }
diff --git a/recaptcha.test b/recaptcha.test
index 48b409b..8f92fd5 100644
--- a/recaptcha.test
+++ b/recaptcha.test
@@ -127,13 +127,17 @@ class ReCaptchaBasicTest extends DrupalWebTestCase {
 
     // Check if there is a reCAPTCHA on the login form.
     $this->drupalGet('user');
-    $this->assertRaw($grecaptcha, '[testReCaptchaOnLoginForm]: reCAPTCHA is shown on form.');
-    $this->assertRaw('<script src="https://www.google.com/recaptcha/api.js?hl=' . $language->language . '" async="async" defer="defer"></script>', '[testReCaptchaOnLoginForm]: reCAPTCHA is shown on form.');
+    $captcha_sid = $this->getCaptchaSid();
+    $grecaptcha = '<div id="g-recaptcha' . $captcha_sid . '" class="g-recaptcha" data-sitekey="' . $site_key . '" data-theme="light" data-type="image"></div>';
+    $this->assertRaw($grecaptcha, '[testReCaptchaOnLoginForm]: reCAPTCHA is shown on form.' . $grecaptcha);
+    $this->assertRaw('<script src="https://www.google.com/recaptcha/api.js?onload=ReCaptchaCallbackForMultiple&amp;render=explicit&amp;hl=' . $language->language . '" async="async" defer="defer"></script>', '[testReCaptchaOnLoginForm]: reCAPTCHA is shown on form.');
     $this->assertNoRaw($grecaptcha . '<noscript>', '[testReCaptchaOnLoginForm]: NoScript code is not enabled for the reCAPTCHA.');
 
     // Test if the fall back url is properly build and noscript code added.
     variable_set('recaptcha_noscript', 1);
     $this->drupalGet('user');
+    $captcha_sid = $this->getCaptchaSid();
+    $grecaptcha = '<div id="g-recaptcha' . $captcha_sid . '" class="g-recaptcha" data-sitekey="' . $site_key . '" data-theme="light" data-type="image"></div>';
     $this->assertRaw($grecaptcha . '<noscript>', '[testReCaptchaOnLoginForm]: NoScript for reCAPTCHA is shown on form.');
     $this->assertRaw('https://www.google.com/recaptcha/api/fallback?k=' . $site_key . '&amp;hl=' . $language->language, '[testReCaptchaOnLoginForm]: Fallback URL with IFRAME has been found.');
 
@@ -152,4 +156,13 @@ class ReCaptchaBasicTest extends DrupalWebTestCase {
     $this->assertField('pass', t('Password field found.'), 'reCAPTCHA');
   }
 
+  /**
+   * Get captcha_sid.
+   */
+  protected function getCaptchaSid() {
+    $elements = $this->xpath('//input[@name="captcha_sid"]');
+    $captcha_sid = (int) $elements[0]['value'];
+    return $captcha_sid;
+  }
+
 }