diff --git a/Android.bp b/Android.bp
index 199f4722..8886dce8 100644
--- a/Android.bp
+++ b/Android.bp
@@ -281,6 +281,7 @@ cc_binary {
     srcs: [
         "tee-supplicant/src/handle.c",
         "tee-supplicant/src/rpmb.c",
+        "tee-supplicant/src/sd_notify.c",
         "tee-supplicant/src/tee_supp_fs.c",
         "tee-supplicant/src/tee_supplicant.c",
         "tee-supplicant/src/teec_ta_load.c",