diff --git a/include/osmocom/msc/gsm_04_80.h b/include/osmocom/msc/gsm_04_80.h
index 7d63088..c448c91 100644
--- a/include/osmocom/msc/gsm_04_80.h
+++ b/include/osmocom/msc/gsm_04_80.h
@@ -1,18 +1,10 @@
 #pragma once
 
-#include <osmocom/core/msgb.h>
-#include <osmocom/gsm/protocol/gsm_04_80.h>
-#include <osmocom/gsm/gsm0480.h>
+#include <stdint.h>
 
 struct gsm_subscriber_connection;
 
-int gsm0480_send_ussd_response(struct gsm_subscriber_connection *conn,
-			       uint8_t transaction_id, uint8_t invoke_id,
-			       const char *response_text);
-int gsm0480_send_ussd_return_error(struct gsm_subscriber_connection *conn,
-				   uint8_t transaction_id, uint8_t invoke_id,
-				   uint8_t error_code);
-int gsm0480_send_ussd_reject(struct gsm_subscriber_connection *conn,
+int msc_send_ussd_reject(struct gsm_subscriber_connection *conn,
 			     uint8_t transaction_id, int invoke_id,
 			     uint8_t problem_tag, uint8_t problem_code);