diff --git a/classes/form/studyplan_editform.php b/classes/form/studyplan_editform.php
index c18ec16..24a55a0 100644
--- a/classes/form/studyplan_editform.php
+++ b/classes/form/studyplan_editform.php
@@ -186,7 +186,7 @@ class studyplan_editform extends formbase {
 
         $contextlist = [];
         // Add system if the user has permissions.
-        if (has_all_capabilities([courseservice::CAP_EDIT,'moodle/category:viewcourselist'], \context_system::instance())) {
+        if (has_all_capabilities([courseservice::CAP_EDIT, 'moodle/category:viewcourselist'], \context_system::instance())) {
             $contextlist[1] = get_string("coresystem");
         }
         // Add any other contexts the user has access to.
diff --git a/classes/local/randomimage.php b/classes/local/randomimage.php
index 9098ca9..fd375c2 100644
--- a/classes/local/randomimage.php
+++ b/classes/local/randomimage.php
@@ -80,7 +80,7 @@ class randomimage {
         $color = imagecolorallocatealpha($im, ...$this->random_color_alpha());
         $numpoints = \random_int(3, $maxpts);
         $pts = $this->random_pts($numpoints);
-        imagefilledpolygon($im, $pts, $color);
+        imagefilledpolygon($im, $pts, $numpoints, $color);
     }
 
     /**