diff --git a/openbsc/include/openbsc/bsc_api.h b/openbsc/include/openbsc/bsc_api.h
index 8848c91..14f5c69 100644
--- a/openbsc/include/openbsc/bsc_api.h
+++ b/openbsc/include/openbsc/bsc_api.h
@@ -12,8 +12,6 @@
 	void (*sapi_n_reject)(struct gsm_subscriber_connection *conn, int dlci);
 	void (*cipher_mode_compl)(struct gsm_subscriber_connection *conn,
 				  struct msgb *msg, uint8_t chosen_encr);
-	void (*cipher_mode_reject)(struct gsm_subscriber_connection *conn,
-				  struct msgb *msg, uint16_t reason);
 	int (*compl_l3)(struct gsm_subscriber_connection *conn,
 			struct msgb *msg, uint16_t chosen_channel); 
 	void (*dtap)(struct gsm_subscriber_connection *conn, struct msgb *msg);
diff --git a/openbsc/src/bsc/osmo_bsc_api.c b/openbsc/src/bsc/osmo_bsc_api.c
index f1ba559..5570241 100644
--- a/openbsc/src/bsc/osmo_bsc_api.c
+++ b/openbsc/src/bsc/osmo_bsc_api.c
@@ -29,11 +29,6 @@
 {
 }
 
-static void bsc_cipher_mode_reject(struct gsm_subscriber_connection *conn,
-				   struct msgb *msg, uint16_t reason)
-{
-}
-
 static int bsc_compl_l3(struct gsm_subscriber_connection *conn, struct msgb *msg,
 			uint16_t chosen_channel)
 {
@@ -64,7 +59,6 @@
 static struct bsc_api bsc_handler = {
 	.sapi_n_reject = bsc_sapi_n_reject,
 	.cipher_mode_compl = bsc_cipher_mode_compl,
-	.cipher_mode_reject = bsc_cipher_mode_reject,
 	.compl_l3 = bsc_compl_l3,
 	.dtap  = bsc_dtap,
 	.assign_compl = bsc_assign_compl,