diff --git a/mod_form.php b/mod_form.php
index 40a7653c..d957c025 100644
--- a/mod_form.php
+++ b/mod_form.php
@@ -347,7 +347,7 @@ public function completion_rule_enabled($data) {
      * @param $defaultvalues
      * @return void
      */
-    public function data_preprocessing (&$defaultvalues){
+    public function data_preprocessing(&$defaultvalues) {
         if (empty($defaultvalues[$this->get_suffixed_name('vote')])) {
             $defaultvalues[$this->get_suffixed_name('vote')] = 0;
         }