diff --git a/include/osmocom/bsc/gsm_data.h b/include/osmocom/bsc/gsm_data.h
index da5e87f..5ba4362 100644
--- a/include/osmocom/bsc/gsm_data.h
+++ b/include/osmocom/bsc/gsm_data.h
@@ -460,8 +460,7 @@
 	TS_F_PDCH_ACTIVE =		0x1000,
 	TS_F_PDCH_ACT_PENDING =		0x2000,
 	TS_F_PDCH_DEACT_PENDING =	0x4000,
-	TS_F_PDCH_PENDING_MASK =	0x6000 /*<
-			TS_F_PDCH_ACT_PENDING | TS_F_PDCH_DEACT_PENDING */
+	TS_F_PDCH_PENDING_MASK =	(TS_F_PDCH_ACT_PENDING | TS_F_PDCH_DEACT_PENDING),
 } gsm_bts_trx_ts_flags;
 
 /* One Timeslot in a TRX */