diff --git a/broadcastradio/1.1/default/Tuner.h b/broadcastradio/1.1/default/Tuner.h
index c785586..af19ec0 100644
--- a/broadcastradio/1.1/default/Tuner.h
+++ b/broadcastradio/1.1/default/Tuner.h
@@ -67,6 +67,7 @@
     ProgramInfo mCurrentProgramInfo = {};
     std::atomic<bool> mIsAnalogForced;
 
+    utils::HalRevision getHalRev() const;
     void tuneInternalLocked(const ProgramSelector& sel);
     bool isFmLocked();  // TODO(b/36864090): make it generic, not FM only
 };