diff --git a/transport/Android.bp b/transport/Android.bp
index dbbbdaf..23f6904 100644
--- a/transport/Android.bp
+++ b/transport/Android.bp
@@ -70,6 +70,7 @@
 
     srcs: [
         "HidlBinderSupport.cpp",
+        "HidlPassthroughSupport.cpp",
         "HidlTransportSupport.cpp",
         "HidlTransportUtils.cpp",
         "ServiceManagement.cpp",