diff --git a/buck-tools/default.defs b/buck-tools/default.defs
index ad9f8aa..0e3ff13 100644
--- a/buck-tools/default.defs
+++ b/buck-tools/default.defs
@@ -5,6 +5,7 @@
 include_defs('//bucklets/yang.bucklet')
 include_defs('//bucklets/remote_jar.bucklet')
 include_defs('//bucklets/grpc.bucklet')
+include_defs('//bucklets/jaxb2.bucklet')
 
 BASE_DEPS = [
     '//lib:junit',