diff --git a/gnss/2.1/Android.bp b/gnss/2.1/Android.bp
index 7efc4a6..2122399 100644
--- a/gnss/2.1/Android.bp
+++ b/gnss/2.1/Android.bp
@@ -9,6 +9,8 @@
     srcs: [
         "types.hal",
         "IGnss.hal",
+        "IGnssAntennaInfo.hal",
+        "IGnssAntennaInfoCallback.hal",
         "IGnssCallback.hal",
         "IGnssMeasurement.hal",
         "IGnssMeasurementCallback.hal",