diff --git a/overlay/GsiFrameworkResTarget/res/values/config.xml b/overlay/GsiFrameworkResTarget/res/values/config.xml
index 423abd0..a89e86d 100644
--- a/overlay/GsiFrameworkResTarget/res/values/config.xml
+++ b/overlay/GsiFrameworkResTarget/res/values/config.xml
@@ -64,4 +64,8 @@
 
     <!-- Suppress Intent Filter Verification Service crashes -->
     <string translatable="false" name="config_appsNotReportingCrashes">com.android.statementservice</string>
+
+    <!-- The type of the light sensor to be used by the display framework for things like
+         auto-brightness. If unset, then it just gets the default sensor of type TYPE_LIGHT. -->
+    <string name="config_displayLightSensorType" translatable="false">android.sensor.light</string>
 </resources>