diff --git a/tests/unit/Android.bp b/tests/unit/Android.bp
index 408f2d3..5582ff4 100644
--- a/tests/unit/Android.bp
+++ b/tests/unit/Android.bp
@@ -35,6 +35,7 @@
         "SettingsLibSettingsSpinner",
         "SettingsLibUsageProgressBarPreference",
         "SettingsLibTwoTargetPreference",
+        "SettingsLibMainSwitchPreference",
     ],
 
     // Include all test java files.