diff --git a/libs/gui/tests/BufferQueue_test.cpp b/libs/gui/tests/BufferQueue_test.cpp
index b859fcbde..5aa34a575 100644
--- a/libs/gui/tests/BufferQueue_test.cpp
+++ b/libs/gui/tests/BufferQueue_test.cpp
@@ -72,6 +72,7 @@ const String16 BufferQueueTest::CONSUMER_NAME = String16("BQTestConsumer");
 struct DummyConsumer : public BnConsumerListener {
     virtual void onFrameAvailable() {}
     virtual void onBuffersReleased() {}
+    virtual void onSidebandStreamChanged() {}
 };
 
 TEST_F(BufferQueueTest, AcquireBuffer_ExceedsMaxAcquireCount_Fails) {
diff --git a/libs/gui/tests/DisconnectWaiter.h b/libs/gui/tests/DisconnectWaiter.h
index 3a30a1937..56e96c295 100644
--- a/libs/gui/tests/DisconnectWaiter.h
+++ b/libs/gui/tests/DisconnectWaiter.h
@@ -57,6 +57,8 @@ public:
         }
     }
 
+    virtual void onSidebandStreamChanged() {}
+
     void finishDisconnect() {
         Mutex::Autolock lock(mMutex);
         mWaitForDisconnect = true;
diff --git a/libs/gui/tests/IGraphicBufferProducer_test.cpp b/libs/gui/tests/IGraphicBufferProducer_test.cpp
index 4d38ff566..c2653c219 100644
--- a/libs/gui/tests/IGraphicBufferProducer_test.cpp
+++ b/libs/gui/tests/IGraphicBufferProducer_test.cpp
@@ -66,6 +66,7 @@ const sp<Fence> QUEUE_BUFFER_INPUT_FENCE = Fence::NO_FENCE;
 struct DummyConsumer : public BnConsumerListener {
     virtual void onFrameAvailable() {}
     virtual void onBuffersReleased() {}
+    virtual void onSidebandStreamChanged() {}
 };
 
 class IGraphicBufferProducerTest : public ::testing::Test {