diff --git a/app/views/my_courses/groups.php b/app/views/my_courses/groups.php
index 7ca29a0e0ee6ae6d4a24165066922ca1ea434f40..4476aeb20df2c48cda15b0c61c33d91529237bc6 100644
--- a/app/views/my_courses/groups.php
+++ b/app/views/my_courses/groups.php
@@ -58,7 +58,7 @@
                 <? for ($i = 0; $i < 9; $i++): ?>
                     <td class="gruppe<?= $i ?> mycourses-group-selector" onclick="this.querySelector('input').checked = true;">
                         <input type="radio" name="gruppe[<?= $member['seminar_id'] ?>]" value="<?= $i ?>"
-                               aria-label="<?= sprintf(_('Gruppe %u zuordnen'), ($i + 1)) ?>"
+                               aria-label="<?= sprintf(_('Gruppe %u zuordnen'), $i + 1) ?>"
                                id="course-group-<?= htmlReady($member['seminar_id']) ?>-<?= $i ?>"
                             <? if ($my_sem[$member['seminar_id']]['gruppe'] == $i) echo 'checked'; ?>>
                         <label for="course-group-<?= htmlReady($member['seminar_id']) ?>-<?= $i ?>">
diff --git a/resources/assets/stylesheets/scss/my_courses.scss b/resources/assets/stylesheets/scss/my_courses.scss
index 7e037d3b2f0680140faab5132da02e64de4efce6..769f3d2af1ec8d09b85bba64b9b7da60bc050c9e 100644
--- a/resources/assets/stylesheets/scss/my_courses.scss
+++ b/resources/assets/stylesheets/scss/my_courses.scss
@@ -38,14 +38,12 @@ form.default .mycourses-group-selector {
     }
 
     label {
-        /*@include hide-text();*/
-
         text-align: center;
         font-size: large;
         font-weight: bold;
         cursor: pointer;
 
-        background-color: $white;
+        background-color: var(--white);
         margin-bottom: 0;
         text-indent: 0;