diff --git a/src/generators/gencpp.ml b/src/generators/gencpp.ml
index fe566a2f3dd..9c856218de9 100644
--- a/src/generators/gencpp.ml
+++ b/src/generators/gencpp.ml
@@ -8440,6 +8440,7 @@ let generate_script_enum common_ctx script enum_def meta =
 let generate_cppia ctx =
    let common_ctx = ctx.ctx_common in
    let debug = ctx.ctx_debug_level in
+   Path.mkdir_from_path common_ctx.file;
    let script = new script_writer ctx common_ctx.file common_ctx.debug in
    ignore (script#stringId "");
    ignore (script#typeId "");