diff --git a/libs/binder/BpBinder.cpp b/libs/binder/BpBinder.cpp
index 825a821..53b36ff 100644
--- a/libs/binder/BpBinder.cpp
+++ b/libs/binder/BpBinder.cpp
@@ -194,10 +194,13 @@
 const String16& BpBinder::getInterfaceDescriptor() const
 {
     if (isDescriptorCached() == false) {
-        Parcel send, reply;
+        sp<BpBinder> thiz = const_cast<BpBinder*>(this);
+
+        Parcel data;
+        data.markForBinder(thiz);
+        Parcel reply;
         // do the IPC without a lock held.
-        status_t err = const_cast<BpBinder*>(this)->transact(
-                INTERFACE_TRANSACTION, send, &reply);
+        status_t err = thiz->transact(INTERFACE_TRANSACTION, data, &reply);
         if (err == NO_ERROR) {
             String16 res(reply.readString16());
             Mutex::Autolock _l(mLock);
diff --git a/libs/binder/tests/binderRpcTest.cpp b/libs/binder/tests/binderRpcTest.cpp
index 936ee5e..bbde29a 100644
--- a/libs/binder/tests/binderRpcTest.cpp
+++ b/libs/binder/tests/binderRpcTest.cpp
@@ -383,6 +383,12 @@
     EXPECT_EQ(OK, proc.rootBinder->pingBinder());
 }
 
+TEST_P(BinderRpc, GetInterfaceDescriptor) {
+    auto proc = createRpcTestSocketServerProcess(1);
+    ASSERT_NE(proc.rootBinder, nullptr);
+    EXPECT_EQ(IBinderRpcTest::descriptor, proc.rootBinder->getInterfaceDescriptor());
+}
+
 TEST_P(BinderRpc, TransactionsMustBeMarkedRpc) {
     auto proc = createRpcTestSocketServerProcess(1);
     Parcel data;