diff --git a/services/core/java/com/android/server/wm/ActivityRecord.java b/services/core/java/com/android/server/wm/ActivityRecord.java
index faa0cc96675c2..d15d094405734 100644
--- a/services/core/java/com/android/server/wm/ActivityRecord.java
+++ b/services/core/java/com/android/server/wm/ActivityRecord.java
@@ -9074,6 +9074,7 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
 
         final boolean wasInPictureInPicture = inPinnedWindowingMode();
         final DisplayContent display = mDisplayContent;
+        final int activityType = getActivityType();
         if (wasInPictureInPicture && attachedToProcess() && display != null) {
             // If the PIP activity is changing to fullscreen with display orientation change, the
             // fixed rotation will take effect that requires to send fixed rotation adjustments
@@ -9098,6 +9099,11 @@ final class ActivityRecord extends WindowToken implements WindowManagerService.A
         } else {
             super.onConfigurationChanged(newParentConfig);
         }
+        if (activityType != ACTIVITY_TYPE_UNDEFINED
+                && activityType != getActivityType()) {
+            Slog.w(TAG, "Can't change activity type once set: " + this
+                    + " activityType=" + activityTypeToString(getActivityType()));
+        }
 
         // Configuration's equality doesn't consider seq so if only seq number changes in resolved
         // override configuration. Therefore ConfigurationContainer doesn't change merged override
diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index ebdc537e78723..969f65c9602b4 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -5781,8 +5781,11 @@ class Task extends TaskFragment {
             final int taskId = activity != null
                     ? mTaskSupervisor.getNextTaskIdForUser(activity.mUserId)
                     : mTaskSupervisor.getNextTaskIdForUser();
+            final int activityType = getActivityType();
             task = new Task.Builder(mAtmService)
                     .setTaskId(taskId)
+                    .setActivityType(activityType != ACTIVITY_TYPE_UNDEFINED ? activityType
+                            : ACTIVITY_TYPE_STANDARD)
                     .setActivityInfo(info)
                     .setActivityOptions(options)
                     .setIntent(intent)