diff --git a/CHANGELOG.md b/CHANGELOG.md
index 3f921c904..2903d6e29 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -1,3 +1,4 @@
+desktop: fix brightness configuration for OSTC4
 equipment: Use 'diluent' as default gas use type if the dive mode is 'CCR'
 htmlexport: fix search in HTML export
 statistics: fix value axis for degenerate value ranges
diff --git a/desktop-widgets/configuredivecomputerdialog.ui b/desktop-widgets/configuredivecomputerdialog.ui
index 9da78ee10..0725d5c85 100644
--- a/desktop-widgets/configuredivecomputerdialog.ui
+++ b/desktop-widgets/configuredivecomputerdialog.ui
@@ -2499,6 +2499,11 @@
            <layout class="QGridLayout" name="gridLayout_7">
             <item row="5" column="4">
              <widget class="QComboBox" name="brightnessComboBox_4">
+              <item>
+               <property name="text">
+                <string>Cave</string>
+               </property>
+              </item>
               <item>
                <property name="text">
                 <string>Eco</string>