diff --git a/classes/plagiarism_pchkorg_api_provider.php b/classes/plagiarism_pchkorg_api_provider.php
index 8c32380..f9973c1 100644
--- a/classes/plagiarism_pchkorg_api_provider.php
+++ b/classes/plagiarism_pchkorg_api_provider.php
@@ -245,7 +245,10 @@ class plagiarism_pchkorg_api_provider {
         $eol = "\r\n";
 
         $body = '';
+
         $body .= $this->get_part('language', 'en', $boundary);
+        $body .= $this->get_part('skip_english_words_validation', '1', $boundary);
+        $body .= $this->get_part('skip_percentage_words_validation', '1', $boundary);
         $body .= $this->get_file_part('text', $content, $mime, $filename, $boundary);
         $body .= '--' . $boundary . '--' . $eol;
 
diff --git a/lib.php b/lib.php
index 8568333..08d9de8 100644
--- a/lib.php
+++ b/lib.php
@@ -91,7 +91,7 @@ class plagiarism_plugin_pchkorg extends plagiarism_plugin {
             $link = sprintf(' <a href="%s" target="_blank">( %s )</a> ', $checkurl->__toString(), $label);
         } else {
             $label = get_string('pchkorg_check_for_plagiarism', 'plagiarism_pchkorg');
-            $link = sprintf(' <a href="%s">( %s )</a> ', $checkurl->__toString(), $label);
+            $link = sprintf(' <a href="%s" target="_blank">( %s )</a> ', $checkurl->__toString(), $label);
         }
 
         return $link;
diff --git a/version.php b/version.php
index 67fc64b..b3db607 100644
--- a/version.php
+++ b/version.php
@@ -26,9 +26,9 @@ defined('MOODLE_INTERNAL') || die();
 if (!isset($plugin)) {
     $plugin = new stdClass();
 }
-$plugin->version = 2019020601;
+$plugin->version = 2019031401;
 $plugin->requires = 2017051501; // Requires Moodle 3.3 .
-$plugin->release = 'v2.3';
+$plugin->release = 'v2.4';
 $plugin->maturity = MATURITY_STABLE;
 
 $plugin->component = 'plagiarism_pchkorg';