diff --git a/overlay/frameworks/base/core/res/res/values/config.xml b/overlay/frameworks/base/core/res/res/values/config.xml
index 0b4a9be..21fef10 100644
--- a/overlay/frameworks/base/core/res/res/values/config.xml
+++ b/overlay/frameworks/base/core/res/res/values/config.xml
@@ -23,6 +23,10 @@
          Software implementation will be used if config_hardware_auto_brightness_available is not set -->
     <bool name="config_automatic_brightness_available">true</bool>
 
+    <!-- Minimum screen brightness setting allowed by the power manager.
+         The user is forbidden from setting the brightness below this level. -->
+    <integer name="config_screenBrightnessSettingMinimum">1</integer>
+
     <!-- Default screen brightness setting.
          Must be in the range specified by minimum and maximum. -->
     <integer name="config_screenBrightnessSettingDefault">88</integer>