diff --git a/include/osmocom/iuh/hnbgw_ranap.h b/include/osmocom/iuh/hnbgw_ranap.h
new file mode 100644
index 0000000..2c55964
--- /dev/null
+++ b/include/osmocom/iuh/hnbgw_ranap.h
@@ -0,0 +1,6 @@
+#pragma once
+
+#include <osmocom/iuh/hnbgw.h>
+
+int hnbgw_ranap_rx(struct msgb *msg, uint8_t *data, size_t len);
+int hnbgw_ranap_init(void);