diff --git a/openbsc/src/gsm_04_08.c b/openbsc/src/gsm_04_08.c
index 0815d6d..5fea6bf 100644
--- a/openbsc/src/gsm_04_08.c
+++ b/openbsc/src/gsm_04_08.c
@@ -198,7 +198,7 @@
 
 	rep->cell[0].rxlev = data[3] & 0x3f;
 	rep->cell[0].arfcn = bitvec_get_nth_set_bit(nbv, data[4] >> 2);
-	rep->cell[0].bsic = ((data[4] & 0x03) << 3) | (data[5] >> 5);
+	rep->cell[0].bsic = ((data[4] & 0x07) << 3) | (data[5] >> 5);
 	if (rep->num_cell < 2)
 		return 0;