diff --git a/services/core/java/com/android/server/wm/TaskStack.java b/services/core/java/com/android/server/wm/TaskStack.java
index 7d4d7cb9c71c4..018765d1ecdc3 100644
--- a/services/core/java/com/android/server/wm/TaskStack.java
+++ b/services/core/java/com/android/server/wm/TaskStack.java
@@ -1722,6 +1722,9 @@ public class TaskStack extends WindowContainer<Task> implements
             return true;
         }
         final Task homeTask = homeStack.getTopChild();
+        if (homeTask == null) {
+            return true;
+        }
         final AppWindowToken homeApp = homeTask.getTopVisibleAppToken();
         if (!homeTask.isVisible() || homeApp == null) {
             return true;