diff --git a/libs/gui/ConsumerBase.cpp b/libs/gui/ConsumerBase.cpp
index c5900aa..b6adc54 100644
--- a/libs/gui/ConsumerBase.cpp
+++ b/libs/gui/ConsumerBase.cpp
@@ -130,6 +130,9 @@
     }
 }
 
+void ConsumerBase::onSidebandStreamChanged() {
+}
+
 void ConsumerBase::abandon() {
     CB_LOGV("abandon");
     Mutex::Autolock lock(mMutex);