diff --git a/rebar.config b/rebar.config
index 4ce151a5b..8999d9e97 100644
--- a/rebar.config
+++ b/rebar.config
@@ -57,5 +57,7 @@
   {emqx_schema_api,make_schema_params,1},
   {emqx_schema_parser,decode,3},
   {emqx_schema_parser,encode,3},
-  {emqx_schema_registry,add_schema,1}
+  {emqx_schema_registry,add_schema,1},
+  emqx_exhook_pb, % generated code for protobuf
+  emqx_exproto_pb % generated code for protobuf
 ]}.