diff --git a/mod/assign/submission/onlinetext/locallib.php b/mod/assign/submission/onlinetext/locallib.php
index 063849014f1..a876880fc1e 100644
--- a/mod/assign/submission/onlinetext/locallib.php
+++ b/mod/assign/submission/onlinetext/locallib.php
@@ -615,7 +615,7 @@ class assign_submission_onlinetext extends assign_submission_plugin {
      * @return external_description|null
      */
     public function get_external_parameters() {
-        $editorparams = array('text' => new external_value(PARAM_TEXT, 'The text for this submission.'),
+        $editorparams = array('text' => new external_value(PARAM_RAW, 'The text for this submission.'),
                               'format' => new external_value(PARAM_INT, 'The format for this submission'),
                               'itemid' => new external_value(PARAM_INT, 'The draft area id for files attached to the submission'));
         $editorstructure = new external_single_structure($editorparams, 'Editor structure', VALUE_OPTIONAL);
diff --git a/mod/assign/tests/externallib_test.php b/mod/assign/tests/externallib_test.php
index e035af61a5e..f06ac43f2e5 100644
--- a/mod/assign/tests/externallib_test.php
+++ b/mod/assign/tests/externallib_test.php
@@ -970,7 +970,7 @@ class mod_assign_external_testcase extends externallib_advanced_testcase {
         // Now try a submission.
         $submissionpluginparams = array();
         $submissionpluginparams['files_filemanager'] = $draftidfile;
-        $onlinetexteditorparams = array('text'=>'Yeeha!',
+        $onlinetexteditorparams = array('text' => '<p>Yeeha!</p>',
                                         'format'=>1,
                                         'itemid'=>$draftidonlinetext);
         $submissionpluginparams['onlinetext_editor'] = $onlinetexteditorparams;