diff --git a/include/osmocom/bsc/bts.h b/include/osmocom/bsc/bts.h
index 07d2793..b38c11a 100644
--- a/include/osmocom/bsc/bts.h
+++ b/include/osmocom/bsc/bts.h
@@ -598,7 +598,7 @@
 
 int gsm_set_bts_type(struct gsm_bts *bts, enum gsm_bts_type type);
 
-struct gsm_bts_trx *gsm_bts_trx_by_nr(struct gsm_bts *bts, int nr);
+struct gsm_bts_trx *gsm_bts_trx_num(const struct gsm_bts *bts, int num);
 
 int bts_gprs_mode_is_compat(struct gsm_bts *bts, enum bts_gprs_mode mode);
 
diff --git a/include/osmocom/bsc/gsm_data.h b/include/osmocom/bsc/gsm_data.h
index a74e6d9..f90bfa7 100644
--- a/include/osmocom/bsc/gsm_data.h
+++ b/include/osmocom/bsc/gsm_data.h
@@ -963,7 +963,6 @@
 				   int match_idx);
 
 struct gsm_bts_trx *gsm_bts_trx_alloc(struct gsm_bts *bts);
-struct gsm_bts_trx *gsm_bts_trx_num(const struct gsm_bts *bts, int num);
 
 extern const struct value_string gsm_chreq_descs[];
 extern const struct value_string gsm_pchant_names[];