diff --git a/services/core/java/com/android/server/wm/Task.java b/services/core/java/com/android/server/wm/Task.java
index a310992..4a2694b 100644
--- a/services/core/java/com/android/server/wm/Task.java
+++ b/services/core/java/com/android/server/wm/Task.java
@@ -4772,6 +4772,9 @@
                     mTransitionController.collect(topActivity);
 
                     final Task lastParentBeforePip = topActivity.getLastParentBeforePip();
+                    // Reset the activity windowing mode to match the parent.
+                    topActivity.getRequestedOverrideConfiguration()
+                            .windowConfiguration.setWindowingMode(WINDOWING_MODE_UNDEFINED);
                     topActivity.reparent(lastParentBeforePip,
                             lastParentBeforePip.getChildCount() /* top */,
                             "movePinnedActivityToOriginalTask");