diff --git a/tools/releasetools/Android.bp b/tools/releasetools/Android.bp
index 7f727fb..45e0514 100644
--- a/tools/releasetools/Android.bp
+++ b/tools/releasetools/Android.bp
@@ -272,7 +272,9 @@
         "bsdiff",
         "imgdiff",
         "minigzip",
+        "lz4",
         "mkbootfs",
+        "signapk",
     ],
 }