diff --git a/openbsc/src/libbsc/chan_alloc.c b/openbsc/src/libbsc/chan_alloc.c
index f12e21b..b794132 100644
--- a/openbsc/src/libbsc/chan_alloc.c
+++ b/openbsc/src/libbsc/chan_alloc.c
@@ -143,7 +143,7 @@
 	ts->pchan = GSM_PCHAN_NONE;
 }
 
-static const u_int8_t subslots_per_pchan[] = {
+static const uint8_t subslots_per_pchan[] = {
 	[GSM_PCHAN_NONE] = 0,
 	[GSM_PCHAN_CCCH] = 0,
 	[GSM_PCHAN_CCCH_SDCCH4] = 4,
@@ -370,7 +370,7 @@
 	int sapi;
 
 	for (sapi = 1; sapi < ARRAY_SIZE(lchan->sapis); ++sapi) {
-		u_int8_t link_id;
+		uint8_t link_id;
 		if (lchan->sapis[sapi] == LCHAN_SAPI_UNUSED)
 			continue;
 
@@ -401,7 +401,7 @@
 }
 
 /* called from abis rsl */
-int rsl_lchan_rll_release(struct gsm_lchan *lchan, u_int8_t link_id)
+int rsl_lchan_rll_release(struct gsm_lchan *lchan, uint8_t link_id)
 {
 	if (lchan->state != LCHAN_S_REL_REQ)
 		return -1;