diff --git a/src/tbf_ul.h b/src/tbf_ul.h
index 0812b9d..014b167 100644
--- a/src/tbf_ul.h
+++ b/src/tbf_ul.h
@@ -132,7 +132,7 @@
 #ifdef __cplusplus
 extern "C" {
 #endif
-struct gprs_rlcmac_ul_tbf *tbf_alloc_ul_tbf(struct gprs_rlcmac_bts *bts, struct GprsMs *ms, int8_t use_trx, bool single_slot);
+struct gprs_rlcmac_ul_tbf *ul_tbf_alloc(struct gprs_rlcmac_bts *bts, struct GprsMs *ms, int8_t use_trx, bool single_slot);
 void update_tbf_ta(struct gprs_rlcmac_ul_tbf *tbf, int8_t ta_delta);
 void set_tbf_ta(struct gprs_rlcmac_ul_tbf *tbf, uint8_t ta);
 struct gprs_rlcmac_ul_tbf *tbf_as_ul_tbf(struct gprs_rlcmac_tbf *tbf);