diff --git a/tests/robotests/assets/grandfather_slice_controller_not_in_xml b/tests/robotests/assets/grandfather_slice_controller_not_in_xml
index d2274e65faf..4bc43391fdd 100644
--- a/tests/robotests/assets/grandfather_slice_controller_not_in_xml
+++ b/tests/robotests/assets/grandfather_slice_controller_not_in_xml
@@ -2,3 +2,4 @@ com.android.settings.testutils.FakeToggleController
 com.android.settings.testutils.FakeSliderController
 com.android.settings.core.TogglePreferenceControllerTest$FakeToggle
 com.android.settings.accessibility.AccessibilitySlicePreferenceController
+com.android.settings.network.telephony.MmsMessagePreferenceController