diff --git a/services/core/java/com/android/server/wm/ActivityStarter.java b/services/core/java/com/android/server/wm/ActivityStarter.java
index f9e59c87a67f0..fedbe5bcd8627 100644
--- a/services/core/java/com/android/server/wm/ActivityStarter.java
+++ b/services/core/java/com/android/server/wm/ActivityStarter.java
@@ -2454,6 +2454,7 @@ class ActivityStarter {
 
         mInTask = null;
         mInTaskFragment = null;
+        mAddingToTaskFragment = null;
         mAddingToTask = false;
 
         mNewTaskInfo = null;