diff --git a/libs/binder/ndk/include_cpp/android/binder_auto_utils.h b/libs/binder/ndk/include_cpp/android/binder_auto_utils.h
index 7ea9be7..fccc0af 100644
--- a/libs/binder/ndk/include_cpp/android/binder_auto_utils.h
+++ b/libs/binder/ndk/include_cpp/android/binder_auto_utils.h
@@ -349,7 +349,7 @@
     /**
      * See AIBinder_Weak_promote.
      */
-    SpAIBinder promote() { return SpAIBinder(AIBinder_Weak_promote(get())); }
+    SpAIBinder promote() const { return SpAIBinder(AIBinder_Weak_promote(get())); }
 };
 
 namespace internal {
diff --git a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
index 6d29238..01b9472 100644
--- a/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
+++ b/libs/binder/ndk/tests/libbinder_ndk_unit_test.cpp
@@ -670,6 +670,26 @@
     EXPECT_EQ(42, pparcel->readInt32());
 }
 
+TEST(NdkBinder, GetAndVerifyScopedAIBinder_Weak) {
+    for (const ndk::SpAIBinder& binder :
+         {// remote
+          ndk::SpAIBinder(AServiceManager_getService(kBinderNdkUnitTestService)),
+          // local
+          ndk::SharedRefBase::make<MyBinderNdkUnitTest>()->asBinder()}) {
+        // get a const ScopedAIBinder_Weak and verify promote
+        EXPECT_NE(binder.get(), nullptr);
+        const ndk::ScopedAIBinder_Weak wkAIBinder =
+                ndk::ScopedAIBinder_Weak(AIBinder_Weak_new(binder.get()));
+        EXPECT_EQ(wkAIBinder.promote().get(), binder.get());
+        // get another ScopedAIBinder_Weak and verify
+        ndk::ScopedAIBinder_Weak wkAIBinder2 =
+                ndk::ScopedAIBinder_Weak(AIBinder_Weak_new(binder.get()));
+        EXPECT_FALSE(AIBinder_Weak_lt(wkAIBinder.get(), wkAIBinder2.get()));
+        EXPECT_FALSE(AIBinder_Weak_lt(wkAIBinder2.get(), wkAIBinder.get()));
+        EXPECT_EQ(wkAIBinder2.promote(), wkAIBinder.promote());
+    }
+}
+
 class MyResultReceiver : public BnResultReceiver {
    public:
     Mutex mMutex;