diff --git a/services/core/java/com/android/server/wm/ActivityStarter.java b/services/core/java/com/android/server/wm/ActivityStarter.java
index 3bc6435ae0179..f6757f599d7c8 100644
--- a/services/core/java/com/android/server/wm/ActivityStarter.java
+++ b/services/core/java/com/android/server/wm/ActivityStarter.java
@@ -1509,7 +1509,7 @@ class ActivityStarter {
         final Task targetTask = r.getTask() != null
                 ? r.getTask()
                 : mTargetTask;
-        if (startedActivityRootTask == null || targetTask == null) {
+        if (startedActivityRootTask == null || targetTask == null || !targetTask.isAttached()) {
             return;
         }