diff --git a/services/core/java/com/android/server/wm/TaskStack.java b/services/core/java/com/android/server/wm/TaskStack.java
index ae9e80268741c..2e506ab476df8 100644
--- a/services/core/java/com/android/server/wm/TaskStack.java
+++ b/services/core/java/com/android/server/wm/TaskStack.java
@@ -1721,6 +1721,9 @@ 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;