diff --git a/src/operation.hpp b/src/operation.hpp index 415e52b3a4..97dc6affb3 100644 --- a/src/operation.hpp +++ b/src/operation.hpp @@ -4,6 +4,8 @@ // base classes to implement curiously recurring template pattern (CRTP) // https://en.wikipedia.org/wiki/Curiously_recurring_template_pattern +#include + #include "ast_fwd_decl.hpp" #include "ast_def_macros.hpp"