diff --git a/include/osmocom/bsc/pcuif_proto.h b/include/osmocom/bsc/pcuif_proto.h
index cd2a29835..9df85d9b1 100644
--- a/include/osmocom/bsc/pcuif_proto.h
+++ b/include/osmocom/bsc/pcuif_proto.h
@@ -46,7 +46,7 @@
 
 /* flags */
 #define PCU_IF_FLAG_ACTIVE	(1 << 0)/* BTS is active */
-#define PCU_IF_FLAG_SYSMO	(1 << 1)/* access PDCH of sysmoBTS directly */
+#define PCU_IF_FLAG_DIRECT_PHY	(1 << 1)/* access PHY directly via dedicated hardware support */
 #define PCU_IF_FLAG_CS1		(1 << 16)
 #define PCU_IF_FLAG_CS2		(1 << 17)
 #define PCU_IF_FLAG_CS3		(1 << 18)
diff --git a/src/osmo-bsc/pcu_sock.c b/src/osmo-bsc/pcu_sock.c
index dc2b8e9fe..d27909326 100644
--- a/src/osmo-bsc/pcu_sock.c
+++ b/src/osmo-bsc/pcu_sock.c
@@ -200,7 +200,7 @@ static int pcu_tx_info_ind(struct gsm_bts *bts)
 	info_ind = &pcu_prim->u.info_ind;
 	info_ind->version = PCU_IF_VERSION;
 	info_ind->flags |= PCU_IF_FLAG_ACTIVE;
-	info_ind->flags |= PCU_IF_FLAG_SYSMO;
+	info_ind->flags |= PCU_IF_FLAG_DIRECT_PHY;
 
 	/* RAI */
 	info_ind->mcc = bts->network->plmn.mcc;