diff --git a/camera/tests/CameraServiceTest/CameraServiceTest.cpp b/camera/tests/CameraServiceTest/CameraServiceTest.cpp
index 41670af..cb69534 100644
--- a/camera/tests/CameraServiceTest/CameraServiceTest.cpp
+++ b/camera/tests/CameraServiceTest/CameraServiceTest.cpp
@@ -298,6 +298,7 @@
     virtual sp<OverlayRef> createOverlay(
             uint32_t w, uint32_t h, int32_t format, int32_t orientation);
     virtual sp<GraphicBuffer> requestBuffer(int bufferIdx, int usage);
+    virtual status_t setBufferCount(int bufferCount);
 
     // new functions
     void clearStat();
@@ -339,6 +340,11 @@
     return NULL;
 }
 
+status_t MSurface::setBufferCount(int bufferCount) {
+    INFO(__func__);
+    return NULL;
+}
+
 void MSurface::clearStat() {
     Mutex::Autolock _l(mLock);
     registerBuffersCount = 0;