diff --git a/broadcastradio/1.1/default/VirtualProgram.h b/broadcastradio/1.1/default/VirtualProgram.h
index a4fd72c..2ee21a7 100644
--- a/broadcastradio/1.1/default/VirtualProgram.h
+++ b/broadcastradio/1.1/default/VirtualProgram.h
@@ -25,6 +25,9 @@
 namespace V1_1 {
 namespace implementation {
 
+// TODO (b/36864090): inject this data in a more elegant way
+void setCompatibilityLevel(int halversion);
+
 struct VirtualProgram {
     ProgramSelector selector;