diff --git a/Android.bp b/Android.bp
index eefa149..c627fdc 100644
--- a/Android.bp
+++ b/Android.bp
@@ -40,6 +40,7 @@
     ],
     srcs: [
         "android/androidmk.go",
+        "android/apex.go",
         "android/api_levels.go",
         "android/arch.go",
         "android/config.go",