diff --git a/services/core/java/com/android/server/UiModeManagerService.java b/services/core/java/com/android/server/UiModeManagerService.java
index 6b5366a..c29fc7f 100644
--- a/services/core/java/com/android/server/UiModeManagerService.java
+++ b/services/core/java/com/android/server/UiModeManagerService.java
@@ -19,6 +19,7 @@
 import android.annotation.Nullable;
 import android.app.Activity;
 import android.app.ActivityManager;
+import android.app.ActivityTaskManager;
 import android.app.IUiModeManager;
 import android.app.Notification;
 import android.app.NotificationManager;
@@ -475,7 +476,7 @@
             mSetUiMode = mConfiguration.uiMode;
 
             try {
-                ActivityManager.getService().updateConfiguration(mConfiguration);
+                ActivityTaskManager.getService().updateConfiguration(mConfiguration);
             } catch (RemoteException e) {
                 Slog.w(TAG, "Failure communicating with activity manager", e);
             }
@@ -637,7 +638,7 @@
             Intent homeIntent = buildHomeIntent(category);
             if (Sandman.shouldStartDockApp(getContext(), homeIntent)) {
                 try {
-                    int result = ActivityManager.getService().startActivityWithConfig(
+                    int result = ActivityTaskManager.getService().startActivityWithConfig(
                             null, null, homeIntent, null, null, null, 0, 0,
                             mConfiguration, null, UserHandle.USER_CURRENT);
                     if (ActivityManager.isStartResultSuccessful(result)) {