diff --git a/core/api/current.txt b/core/api/current.txt
index 958b2f9..9bcbd72 100644
--- a/core/api/current.txt
+++ b/core/api/current.txt
@@ -33236,7 +33236,7 @@
     method public static android.os.Message obtain(android.os.Handler, int, Object);
     method public static android.os.Message obtain(android.os.Handler, int, int, int);
     method public static android.os.Message obtain(android.os.Handler, int, int, int, Object);
-    method public android.os.Bundle peekData();
+    method @Nullable public android.os.Bundle peekData();
     method public void recycle();
     method public void sendToTarget();
     method public void setAsynchronous(boolean);
diff --git a/core/java/android/os/Message.java b/core/java/android/os/Message.java
index 72fb4ae..cc18482 100644
--- a/core/java/android/os/Message.java
+++ b/core/java/android/os/Message.java
@@ -16,6 +16,7 @@
 
 package android.os;
 
+import android.annotation.Nullable;
 import android.compat.annotation.UnsupportedAppUsage;
 import android.util.TimeUtils;
 import android.util.proto.ProtoOutputStream;
@@ -436,6 +437,7 @@
      * @see #getData()
      * @see #setData(Bundle)
      */
+    @Nullable
     public Bundle peekData() {
         return data;
     }