diff --git a/src/ast_handlers.hpp b/src/ast_handlers.hpp
index 08d2079..87cacd1 100644
--- a/src/ast_handlers.hpp
+++ b/src/ast_handlers.hpp
@@ -230,6 +230,10 @@
     }
 };
 
+struct rpcPath_class;
+
+struct cdPath_class;
+
 struct set_class {
     template <typename Iterator, typename Exception, typename Context>
     x3::error_handler_result on_error(Iterator&, Iterator const&, Exception const& x, Context const& context)
@@ -256,6 +260,12 @@
 
 struct dump_class;
 
+struct rpc_class;
+
+struct exec_class;
+
+struct cancel_class;
+
 struct command_class {
     template <typename Iterator, typename Exception, typename Context>
     x3::error_handler_result on_error(Iterator&, Iterator const&, Exception const& x, Context const& context)