diff --git a/src/bankd_main.c b/src/bankd_main.c
index 0a54ee1..f888e9a 100644
--- a/src/bankd_main.c
+++ b/src/bankd_main.c
@@ -232,8 +232,10 @@
 		return -1;
 	}
 
+	msg->l2h = msg->data;
 	/* prepend the header */
 	ipa_prepend_header_ext(msg, IPAC_PROTO_EXT_RSPRO);
+	ipa_prepend_header(msg, IPAC_PROTO_OSMO);
 
 	/* actually send it through the socket */
 	rc = write(worker->client.fd, msgb_data(msg), msgb_length(msg));
diff --git a/src/rspro_util.c b/src/rspro_util.c
index d55bd30..d6bdd0f 100644
--- a/src/rspro_util.c
+++ b/src/rspro_util.c
@@ -35,6 +35,7 @@
 	if (!msg)
 		return NULL;
 
+	msg->l2h = msg->data;
 	rval = der_encode_to_buffer(&asn_DEF_RsproPDU, pdu, msgb_data(msg), msgb_tailroom(msg));
 	if (rval.encoded < 0) {
 		fprintf(stderr, "Failed to encode %s\n", rval.failed_type->name);