loci: generate header classes
diff --git a/lang_c.py b/lang_c.py
index 83cfb93..33d93e7 100644
--- a/lang_c.py
+++ b/lang_c.py
@@ -176,4 +176,5 @@
             fn(outfile, os.path.basename(name))
     c_gen.codegen.gen_push_wire_types(install_dir)
     c_gen.codegen.generate_classes(install_dir)
+    c_gen.codegen.generate_header_classes(install_dir)
     c_gen.codegen.generate_lists(install_dir)