diff --git a/libasn1fix/asn1fix_class.h b/libasn1fix/asn1fix_class.h
new file mode 100644
index 0000000..c849b2b
--- /dev/null
+++ b/libasn1fix/asn1fix_class.h
@@ -0,0 +1,16 @@
+#ifndef	_ASN1FIX_CLASS_H_
+#define	_ASN1FIX_CLASS_H_
+
+/*
+ * Fetch the element from the class-related stuff (thing) by its reference.
+ */
+asn1p_expr_t *
+asn1f_class_access(arg_t *, asn1p_ref_t *, asn1p_module_t **mod_r);
+
+/*
+ * Externally accessible version of above function.
+ */
+asn1p_expr_t *asn1f_class_access2(asn1p_t *asn, asn1p_module_t *mod,
+	asn1p_expr_t *expr, asn1p_ref_t *, asn1p_module_t **mod_r);
+
+#endif	/* _ASN1FIX_CLASS_H_ */