diff --git a/libs/gui/include/gui/ISurfaceComposer.h b/libs/gui/include/gui/ISurfaceComposer.h
index 3627deb..3e3570d 100644
--- a/libs/gui/include/gui/ISurfaceComposer.h
+++ b/libs/gui/include/gui/ISurfaceComposer.h
@@ -157,7 +157,7 @@
             uint32_t flags, const sp<IBinder>& applyToken,
             const InputWindowCommands& inputWindowCommands, int64_t desiredPresentTime,
             const client_cache_t& uncacheBuffer, bool hasListenerCallbacks,
-            const std::vector<ListenerCallbacks>& listenerCallbacks) = 0;
+            const std::vector<ListenerCallbacks>& listenerCallbacks, uint64_t transactionId) = 0;
 
     /* signal that we're done booting.
      * Requires ACCESS_SURFACE_FLINGER permission
diff --git a/libs/gui/include/gui/SurfaceComposerClient.h b/libs/gui/include/gui/SurfaceComposerClient.h
index 6cac287..bbe3893 100644
--- a/libs/gui/include/gui/SurfaceComposerClient.h
+++ b/libs/gui/include/gui/SurfaceComposerClient.h
@@ -339,12 +339,18 @@
     };
 
     class Transaction : public Parcelable {
+    private:
+        static std::atomic<uint32_t> idCounter;
+        int64_t generateId();
+
     protected:
         std::unordered_map<sp<IBinder>, ComposerState, IBinderHash> mComposerStates;
         SortedVector<DisplayState > mDisplayStates;
         std::unordered_map<sp<ITransactionCompletedListener>, CallbackInfo, TCLHash>
                 mListenerCallbacks;
 
+        uint64_t mId;
+
         uint32_t mForceSynchronous = 0;
         uint32_t mTransactionNestCount = 0;
         bool mAnimation = false;
@@ -380,7 +386,7 @@
         void registerSurfaceControlForCallback(const sp<SurfaceControl>& sc);
 
     public:
-        Transaction() = default;
+        Transaction();
         virtual ~Transaction() = default;
         Transaction(Transaction const& other);